Funnily enough, No! I moved my workspace around to better set it up to paint, and still haven't put a canvas on the easel :p Been doing a lot of 3d printing recently as well as some paying photography work that's taken my painting time.
10-12 on average. Really depends on what I'm working on but in general I try to use as few layers as possible for my workflow. It's a habit I picked up editing photos in bulk.
I dig them, but it is absolutely critical that you make sure you get permission from the people who's images you're going to use to actually use them. This is a copyright violation and if they see them and don't agree, you're technically breaking the law.
Rule number one with photos. Always ask...