these are pretty good, but you have made a few common errors:
1 it really doesn't read well. i think the Christmas colors blend into each other, like the eyes and the hair, and it looks unintentionally busy.
2 why is the hat so saturated, but the rest is so dark? it's a little dark, maybe use more colors. not more contrast, more light shades.
3 the elbow looks like a noodle.

give it a little more form. at this size, you don't really need to know to much anatomy, so don't worry.
i always use 24 bit. are you changing the colors the GG palette comes with?