20 hours?! I would die! I'm flying through my paintings. Takes anywhere from 5 min. to 1/2 hour. It's unusual to paint longer than that on one project. Of course, in my case, I guess that explains a lot! By-the-by, this is beautiful.
Anyone who can stick with one painting for more than 6 or 8 hours simply amazes me. I've said that to lots of people. It makes me feel like there is something wrong with me because I MUST fly through my work. But then again, I've met people on here who produce very detailed work in a matter of an hour or 2. And that blows me away! In art, as in life, we are all different