This one took about a day and a half. I've taken 2 days holiday every week for the next two months which will leave me 4 full days of painting every week. Usually I can do this kind of piece in a couple of full days.
Yes I do sell quite a lot. I do have a small gallery in my home that I open for the occasional Sunday afternoon but most of my sales are made through Facebook. I often post pictures at different stages of completion and they often are sold before they are even finished, it certainly is a great selling tool for art.