I'm occasionally asked how I paint from imagination, and I've sometimes given demos to friends. I figure I'd indulge and try to explain for everyone. Beware, text and pictures ahead! This process is designed for a reasonably fast and predictable result. It's aimed at beginners who are familiar with photoshop primarily, but might be beneficial for more advanced users as well. It's meant for painting from one's own imagination, and I've reached this process through years of experiments and…