First, I sketched on what I wanted. This helps me get the proportions right.
Second - I added a wash of color for the canvases. Need to cover every square inch with paint so you have a base to pain on.
Then I put on several layers of paint, shaded them and when satisfied, put a couple coats of shiny varnish on them. I love them.
Maybe I will said away in one of them. That would be fun.