Hey man, If you are looking for critiques for individual pieces, I suggest that you post them in the critiques forum. Usually the folks there are pretty helpful.
Regarding your works in this portfolio thread, I suggest that you only post finished pieces. There is a vast difference in quality in your last three pieces compared to the rest as well as you seem to focus primarily on the face but do not execute the rest of the images to the same level.
Lastly, your signature, we already know it is "by" Bao so there is no need to write that.
Good Studies and I especially like the Princess Mononoke Image.