I’ve recently collaborated with http://yiihuu.com/ for this step-by-step tutorial starting from scratch.
Tutorial contains 30+ hours of content.
Topics covered: sculpting, modeling, texturing, lighting, rendering, and doing some post for final images presentation.
Tutorial Link : https://www.wingfox.com/c/8312
it is based on a concept by Deiv Calviz
I really hope you like it and if you buy the tutorial I hope that you find it useful/helpful to you with your own projects
Thank you all !