Little creeks like this make me very happy. I can't really explain why. My favorite thing is to explore them by myself. I found this beauty at a park in California last year, and snapped a few pictures.
I did this painting over an old one that wasn't so great. I don't do this often, but last summer a friend was telling me about Gamblin FastMatte, so I tried the titanium white to paint over the yicky painting. (notes: the old painting was completely dry; I scraped off any thick bits of old paint with my palette knife; the fastmatte didn't go on opaque like I expected!) I was very happy with the process and the result.
I've done another interview, this one about materials, in case you're interested.