i see a recurring problem with almost all of your characters. the face tends to look quite a bit flat on the front, specially on the forehead and lips. the surface along the center axis should push out more with respect to the bone structure. if this makes no sense or you want more clarification i can make some examples…
Beautiful work! Thanks for sharing. It almost looks like you could do a lighting/paint pass to bring out some brighter highlights. You have really good darks and midtones but it looks like it is missing that extra punch from the highlights. I really like the gradient with the AO bake as well, but when you introduced your…