I've just been reading that Avoid Writing a Mary Sue tvtrope article, and there's a point I disagree with and want to discuss with you guys:
Now, if I'm reading this correctly that line expects fanfic writers to go into detail when explaining a canon character if they intend to do the same with an original character, but I disagree with that.
I've read fanfics where they do this and I find myself losing patience reading descriptions on characters I already know what they look like and I'm far more likely to stop reading - especially if they go into detail like what clothes they wear (Solas' turtleneck for example*; I know what it looks like, stop describing it and get on with the story). In my opinion unless there is a key difference in a canon characters appearance that differs from canon (concept!Solas) then physical descriptions for canon characters should be ignored.
That said, I think OC's need detailed descriptions, at least (and usually most) at the start (which this quote argues against) when you first meet them so the readers know what they look like. Being vague about appearances can work for certain characters (ME/DAI protagonists), but a big part of making an OC fit in the world where that's not needs the description.
*Harhar! On topic!
And thus I have sinned. My oc description is vague, mentions her eyes and hair several chapters in, and avoids overally concrete points, to leave it to the imagination. Except the fact she's short.
Regarding the late descriptions in books my brain simply ignores it if the character I imagined differs too much, and carries on with my own depiction instead. No bother there. I have a special gripe with Hitchhiker's Guide though, as I cannot agree at all with the movie depiction of Zaphod. Ungh. Or the main character. It's a book which I carried around my entire teenagehood. The movie is a sin.
Now iff to bury Haven. Oh and I need to put some Cole in. Mhm. Mhmmm.
Edit:
I got distracted. Who puts stuff like that on internet? NSFW.
http://40.media.tumb...gcqh9o1_500.jpg