Hey thanks a lot! My process usually starts with a visual breakdown of whatever i'm painting. I take the most important elements of a picture and sketch those in first, then I build off of those main shapes, I try to make the subject recognizable but still very simplified. Its kind of like I try to get it to the point where its in between a complete blur and a sharp image.
With Boba Fett paintings specifically, he actually lends himself quite well to being simplified into an 8-Bit-like image. There are a lot of angular shapes that make up his helmet and body.
I've done a lot of different subjects in this 8-Bit inspired style, I recently did 10 Star Wars themed paintings for a collector of mine who is doing a Star Wars room in his house. Here's the link to check out those paintings: http://www.adamlistergallery.com/star-wars-8-bit.html