Out'a my zone

I tried to paint a looser style and more colorful painting.  I chose this Rhino to try out the changes.  I picked yellow, green and purple for my palette.  I don't think the real life colors on  Rhinos are interesting anyway, so what did I have to lose?  I like the background, except that the bright yellow came out even brighter in the photo. I still need to work on hard edges and keeping the area I am painting wet.
I only spent about 2 hrs on the whole project, not counting digi time.  I crop and try to get my dark and light areas arranged, before I start painting.  I tried Fotosketcher and some PSP on this one.