This is one of my favorite hetero positions/angles.  The form of the female hips and thighs spread out is very nice, and it affords a great view of the penetrating member and bouncing balls underneath.  This isn't one of my best pics, but was fun to do for that reason.  I was working on doing raccoons a bit more, and wanted to try something different for a wolf's face.  However, I don't like how their heads came out that much, and his cock and paws are way too small :)