Watercolor brushes

A comment in the previous post on brushes made me think I should examine the "Real Watercolor" brushes more closely, but with the proper expectations (ie. unexpected results are okay).  So I did, and I didn't try anything too crazy with them, but I like them better in that context.  Making multiple watercolor layers at once is nice.  The watercolor eraser is awful, though.  This was done for the Avalanche blog:
I still like the digital watercolors better though.  This was a drawing session a week or two ago.