Awesome. =D
I'd suggest making the top a little wider though.

Notice how his body is sorta like a cone. Also, make his pupils a bit smaller so he seems "out of it", like he usually does.
On another note, I ****ing love that you did the angel thing.

But make individual sprites for the wings for each pose instead of resizing them. ;D
Also, it's cool you did the angry thing, but I don't think that would appear in the game. Crash never shows any emotions besides "zoned out", shock (in a "scared to death" way, boredom, and happiness. ( Unless he did show other emotions in later games, which would make me a sad panda D: )