I painted this using a canvas toned with dark green. It was actually one that I'd painted over about a month ago and today I thought I'd use it. I've seen other paintings where the artist used a dark, or even black, toned canvas, and I liked the effect. I like this much better than my original painting.
I used a number 8 bright brush and had fun. The best part is that I overcame my tendency to be very tight and detailed and blend-y.