Wow seriously, either you're being sarcastic or stupidly modest. These sketches are awesome and you know it, I always hate it when people act like they're oblivious to their own talent. I mean really do you seriously think anyone's gonna burn you for these. Just the fact that you can replicate the hi-res characters that realistically is a feat in itself. And by the way they're all pretty much spot-on, save the awkward Riku face.
Okay on second thought sorry for sounding mean in the beginning, but really I hope you realize you're an amazing drawer so the next time you post art you can say "CHECK DIS OUT FOO!"