Ray, lovely job on this tiny subject. Nice detail, and the emerald green BG is very nice. The sharpness on the second image looks just right on my monitor. I like the bit of blur on the twitchy tail. Nice work.
I like the raised tail and look-back pose. Sharpness in the second image looks very good. I might lower the midtones a bit and if it were mine, I might be tempted to remove the bright spots in the BG.