I know you've probably seen tons of people request this(and I apologize if you've already answered it already) but have you considered doing District 13 of Panem? I saw a comment on your youtube that suggested maybe making it focus on the nuclear/radioactive aspect... like acidic yellows and greens or something... it'd be really cool! I understand why you wouldn't though, since you've already started and it's not really a district anymore... just a thought =]
my original thought was not to do it because its not in the first book, and that’s mainly what the series is for, along with the fact that district 13 to me seems so sterile.. and really nothing to base a look off of. I did see that comment on my blog and it made me want to reconsider hahah. i didnt think of district 13 BEFORE the books, only after. maybe ill do it after the capitol, i dunno :)