The cerulean sisters look like recolors of eachother, vary it up a bit, they dont all look exactly the same.. Yeah, OK. There hair is different
Flints shirt isn't the right color. It's not yellow. ??? Find me a reference & I'll change it, Bulbapedia, Serebii, and Pokeani disagree. That or I'm a bit colour blind
Still need to fix the shading on oak. ... OK
Surges hair is to bright, just my opinion though, no need to fix it. Agreed
Your samurai turned out really well ;) I know right! He's one of my best ^^