Really nice! I liked the skin shader in particular. When dealing with fantasy skin colors artists tend to use same hue everywhere by default, without touching saturation at all—making the character look more like bubblegum than a person—but that’s not the case here. Good job!
There’s something wrong with the texture on top of his head though. Looks like accidentally masked maps or something, you can even see the seams. Going through the channels, the roughness also has something funny going on: One eye is set to 1, other 0. But this one isn’t important as doesn’t seem to be affecting the final render.