I worked all day on a large painting (20"x50") - a commission - and am sooo tired. I did these mushrooms yesterday because I had a little extra time. The cool thing about my new brush, I am finding, is that for some reason it gives me the courage to put totally different colors RIGHT next to each other, where before I felt like they all had to blend together. So in these mushrooms for instance, which were mostly shades of gray, I tried to accentuate the subtle colors that were really there, and I think it worked pretty well.
