ATC/ACEO Pastel Paintings

I've been on a little kick of painting ATCs/ACEOs lately.  There are a couple (or three) reasons - we're having an exchange on a forum I belong to, I haven't had time to work on a full sized painting (although these little paintings can still rack up the hours) and I've been wanting to challenge myself to try to get as much detail into this small size as possible.

These are both pastel pencils on PastelMat and both regulation ATC/ACEO size (2.5 X 3.5 inches).