No worries, you're absolutely free to disagree. I've already presented the evidence that I think links Ghil and her "winged monsters" to both the Lady and Andruil/Korth, so if that's not compelling, there's not much more to chew over. A small point, though: I didn't mean to imply Andruil was represented as Belenas itself. The peak was Korth's seat of power, levelled (in theory) when Korth/dark!Andruil fell to Nathramar/Mythal. There's an old post on the Solas thread somewhere that gets a bit deeper into the potential link between members of the Pantheon and their respective "sacred peaks", the volcanic rise and fall of which seems linked to the fate of their linked God and mortal bloodline, but that's veering a bit off-topic.
No argument there. There's certainly some interpretive wiggle room in drawing parallels between myths. I'm not sure this particular example works well though, since it implies the dragon was defeated and thus Korth was the "victor". It's possible, since we're ignoring the Dalish version, but seems a less comfortable fit given that the symbol of Korth's domain was utterly leveled in the conflict and not rebuilt.
No offense taken! I honestly appreciate the thought in your response. There's room for both reasonable theorists and Helsdim-level nutjobs here (*ignores the pointed cough in her direction* ) and between the two, I have faith we'll eventually piece together the big picture.
That said, (and don't feel obligated to respond if you'd rather not, since we're dangerously off-topic at this point) I'd be really interested in your interpretation of the following art:
I'm glad to hear it! No worries, I also sometimes veer in the "off, off Broadway musical" theories.
They can be compelling... Like chocolate, but after a while you turn around in the mirror, overweight, middle-aged with a strange chocolate smeared face staring back at you
and say, maybe... I ate too much chocolate 
Anyways... Sure I don't mind giving you my take on them.
What I see on the first picture is Elvhen slaves, their Vallaslin is pretty prominent but what's interesting is each Vellaslin is different, suggesting they are all followers of a different Elvhen god (rather than being a variation of the same Vallaslin), the struggle of all as it were. They seem to be walking in the shadow of an Elvhen god, Ghilan'ain, perhaps. Blood seems to be sapped from them; blood magic? The drawing shows her (it) as very wide to emcompass all elvhen people, as if she is complacent, feeding off of their misery, their labor. The depiction of the halla also makes me think of a pregnant mother. The darkness is also quite striking. It has me wonder when exactly this was drawn. In Tevinter slaves developed a stylized language that only they could share, using symbols and other means to communicate. I wonder if this was done similarly, near the fall of Arlathan, or if this was more of a graffiti during the rebellion.
The second picture similarly depicts Elvhen slaves, but surprisingly, their heads and chests are empty, as if to indicate they have been stripped of their rights to think and to feel. It reminds me of the Old Elvhen writing when talking about the "Pillars of the Earth" (Titans) and their workers (Dwarves) "witless and soulless". For one moment there is a vivid image of two overlapping spheres; unknown flowers bloom inside their centers. Then it fades.
Also the first Elf has a Red Orb in his head where all others are empty. This would seem to imply he "leads" them, rather than simply being first in line. Maybe to imply progressive but total domination of will or just the progressive nature of their affliction. I understand why you would have implied red lyrium to have been present in the time of Arlathan or used before. This could be taken as them being enslaved by a Titan, but I'm not sure that's the case. I still have a hard time believe a Titan could be blighted, given the effect they have on the Darkspawn. The only way this could have happened was if someone who wasn't infected brought the taint in somehow, perhaps Dwarves who had recently separated from the hivemind, maybe supplied by "The Forgotten Ones" in order to us against the Elvhen Pantehon. Know one talks about "The Forgotten Ones" during the time of Arlathan. They must have been trying to usurp power for a long time, especially given Geldauran's claim. This might also be relating to them. The Black and Red could also be a nod towards the blight and red lyrium. As seen throughout the pictures.
It could also be a sun they are walking under, Elgar'nan, perhaps. Again we have the red paint. This could be a depiction of scorching, intense heat as their backs are burned by Elgar'nan's gaze, but it seems like more than that. It definitely has the appearance of blood as the first painting does. Perhaps a depiction of Elgar'nan punishing the Elvhen for rebelling, or trying to rebel. The circle might also represent an Elvhen orb and could be the cause of the Elvhen predicament. Maybe this is what took their "hearts and minds". the fact that their are two circles is also interesting.
The smaller circle could be a representation of Mythal as the moon, trying to protect the Elvhen people by blocking out the sun Elgar'nan. This is much less likely than my other interpretations given the extreme subtlety and simplicity of the image and lack of significant change in the Elvhen people depicted. Black, red and white seem to be the main theme throughout most pictures (except for the yellow circle in the second picture, which could hold significance).
The last picture is the most compelling and the most perplexing. It looks like the Elvhen people are warring with something, under the banner of a... Flying Fish. Ok it's probably a Dragon, it kind of looks like a Chinese Dragon if you observe the head closely. I'm guessing the Elvhen people are warring and not hunting because some of them are depicted as being felled in battle. It is also shown that some are sporting shields. I'm guessing this is happening either during Fen'Harel's rebellion or this is one of the skirmishes/wars that Fen'Harrel referred to being fought by different Elvhen gods from the pantheon. If that is the case it seems the Elvhen are dying for their god rather than fighting with it. "It" is above them, rather than in front, showing supremacy but not leadership, unlike a general taking the front during a war to rally his troops. It also doesn't seem bothered by the slaughtered Elvhen people (at least not enough to protect them in the first place).
I find the ethereal effects used on some of the Harts interesting, either depicting death or maybe showcasing a time before the veil, where the effects of The Fade are being applied here when something dies, it almost seems like a spirit, though this could just be an artists way of detailing the fall or even a stylistic touch to demonstrate numbers, trying to show that there were many Elvhen people involved in the war. The white lines around the dragon seem to be an effect to visually demonstrate motion and flight, presumably the wind brushing against it. Anyways that's all I have time for.
Maybe the grim red and black themes are to showcase "The Forgotten Ones" have finally "struck in mastery". Again, we don't have the context yet nor the identity of the people that drew these.
I'm sure you've already discussed these profoundly so lay it on me. I'm curious to hear what you have to say. I'll get my tinfoil hat just in case 