I could critique you If you don't find it too rude.
Okay first off, this is amazing! You have improved a lot since the last time I critiqued you.
I can't really say much about the coloring since I don't know how to do any of this stuff and probably should learn one of these days. So i guess I'll cover facial anatomy.
This is a little hard to explain without a model (I wish we had muro in comments) but i think the ears are a little too high. The eyes match up with the face at the correct angle but they are a little too high due to the placement. Ears a a little above the where the jaw meets the face (does that even make sense? )
The nose is a bit too small, It seems to just be coming from the middle of the face without the basis of above the eye sockets and down. I see you emphasized that a bit but i would recommend it a bit more. Such as darkening the areas above the eyes a bit more. Finally possibly add a shine or highlight to the nose.
Sorry if this doesn't make any sense, I'm not good at explaining.....stuff.
Wow, look at all those errors I really need to stop typing after doing Exam-study-seshes
*but i think the ears are a little too high. The eyes match up with the face at the correct angle because their height matches with the tips of the ears, which is roughly eye-placement. However they are a little too high due to the placement of the ears. Ears are placed so they start a little above the where the jaw meets the face.