It's a nice conversion retaining detail but for me is a teeny bit flat. Also, those eyes look quite sharp, and I'll bet they look really great in colour...
If you want even more crit: I always try to get my pets away from anything distracting. Not saying that's easy at all, but the towel for me is a
little bit of interference which is
a little bit annoying. If possible I put them somewhere where everything except them is blurred out, so not lying on anything etc.
I know you know all this though, so ignore me if you so wish