You're being too harsh on yourself. I personally think the "warts and all, not overly processed" approach is preferable in that it conveys a more real feel. Some digital noise has never been a problem for me when appreciating a well composed, interesting subject. That's all to say I found your picture delightful as posted, and wouldn't change a thing. Well done.
Another little thief..........I know it is a different one, because he doesn't have a bite out of his left ear! You have to admit they are very cute though!
This one seems to be saying ........"oh, oh, busted!"