Haven't done one of these in a while. I once did a shading tutorial (or should I say step by step) before but that has been ages ago and I feel like Ive improved a lot myself! This one is mostly focused on the head, I might do an environment one as well sometime

Hope showing the steps I do while drawing might help you a bit as well! If you got any questions feel free to ask! ^^

Here are some other examples as well!