It varies. I used to be pretty good about posting sizes.. so far I think it ranges from 7x10 inches to 18x24 inches. I just dont bother mentioning when these latest paintings have all been sketches/rough work.
A lot of the "colors" you see on the palette were mixed from some form of red, yellow and blue.. Just make sure to get tubes, I just find that easier to use. This is a Moleskine watercolor album. I also use Strathmore and Arches.