This looks great! I'm no artist but I've seen learnt a few things when it comes to art. A really good and effective way to make the face of the girl look less derpy, simply to bring the eyes closer together. You can keep the same head width, just move the eyes half a cm closer on both eyes. It'll work wonders. Another thing to help it look less derpy is to weigh the length of the head with the height. If you want to make the face wide, then you have to make the head longer. Perhaps what you could do is move the chin lower and then spread the nose and mouth a little further down. The body genuinely looks amazing though (I don't mean that in a creepy way). I mean it on an anatomy side. You've got the length of the arms and torso amazing and you drew her hands phenomenally. I'm a little unsure why only the tail and eyes are coloured in. It would look amazing coloured in with correct shading and textures. Keep up the good work! It looks great!
Reply: I don't dislike it. I'm not trashing on your style, I'm just giving a few pointers on how to make the face look a little more natural. Don't get me wrong, it looks amazing. You did an amazing job with this, it's just one or two things that could be improved.