He uses Maya, primarily. And, of course, his 20ish years of self-taught Photoshop skills help. As do all his childhood, adolescent, and early adult years of art classes.
He loves answering questions. So if there's a specific technique or look you're interested in knowing more about, feel free to ask him. Please don't expect a fast response, though. We have twin toddlers and daycare is closed, so he doesn't have a lot of time to himself.
He does seem to respond faster to Patreons, of course. 😁
-The Wife