I agree that more space at bottom and left would have been good. You had some low light to deal with. Increasing the ISO along with focus on using correct technique will help in getting higher sharpness. Thanks for sharing.
Nice pose given, agree with more room for feet and tail. Colors appear to be over saturated a bit to me. Not sure how much sharpening you have applied but you might give it another round selectively. Agree on boosting the iso, as Chas has pointed out many times a noisy image wins every time over a blurry one (unintentional blur that is). TFS
Todd