Looking at the closer pictures of the collar, I feel that the button placement is way too low on the shirt; if it were placed higher you'd have a much better collar roll. Right now it looks like the collars are stretching their gosh darndest trying to reach that button. Any further and they'd just give up.
Also I don't really get why the hips flare out so much. Like someone said, it could be remedied by darts, but that still requires extra effort/money. I think I'll pass.