nice one. i was never a fan of that little white points on red cheeks. for usual they totally look like pimples.
looks good, is this new?
it may seem counter intuitive, but sometimes using fewer colors can look better. Here it is with only 16:
http://i39.photobucket.com/albums/e199/sharprm/mini.png
you could use 32. what's important is that the ramps are efficient.
its the cheeks i think