Seems pretty accurate. The Elfquisitors design doesn't look much like any of the designs we have seen before but I guess there could be more variation on each design and we don't know if all the clans always use the same designs. It would be awesome if they listed which god each one was if some are gonna be different.
I wonder if players who choose not to have one will have any ingame reactivity for that, I doubt they are going to force one on you but it would be odd not to have one and would need some explaining.
My hope is that the vallaslin designs (and the Creators who they correspond to) are provided before Inquisition is released.
If you can't handle the pain of the ritual, or if the Keeper decides you're not ready, the elf wouldn't get vallaslin. A Dalish usually receives vallaslin around 18 years of age. For anyone who is interested, the lore reads, "The ritual deserves great reverence. The one who is to gain the vallaslin must prepare by meditating on the gods and the ways of our people, and by purifying the body and the skin. When the time comes, the keeper of the clan applies the blood writing. This is done in complete silence. Cries of pain are signs of weakness. If one cannot tolerate the pain of the blood writing, they are not ready to undertake the responsibilities of an adult. The keeper may stop the ritual if they decide that the one gaining the vallaslin is not ready. There is no shame in this, for all children are different, and our ancestors once took centuries to come of age."
I'd imagine that, lore wise, there should be some reaction to a Dalish not having one, but I'm not sure if the game will acknowledge it. Sounds like a great question to ask one of the developers on twitter.