I really like the flow and movement on most of these characters. The girl on the right is a bit stiff, but perhaps that's part of her personality. I would work on making their colors pop out a bit more. They're a bit subdued.

Hey Palmer, these look pretty good! Not much to improve really, just a few little tweaks I could suggest that could possibly push it further: 1. Change the middle man clothes colors just a bit - they're very close in values at the moment. 2. The left boy expression I feel could be a little bit clearer. 3. I've heard that a good trick to make sure a characters lineup feel like they belong to one world is to keep the eye size consistant. These are very minor, and the only tweaks I can suggest. I hope that's heplful :) Cheers!

I like these a lot! I'd just add a touch of highlight in the hair of the characters with really dark hair. Just to pop that a bit. Minor thing though. They look great already!