It's pretty large: under the cut you can see a little water bottle and a washcloth, plus some old winter gloves that I use for blending colors. I think it took about two hours?

I probably wouldn't try doing it again from scratch. This one I could possibly renew--just go over it and clarify the lines and darken the colors... but I have to work today, and it's due to rain again, so probably I'll just let it fade and come up with another design at some point.