Cute shot. I like the tighter crop but If it were mine I would have more space in front of the squirrel, probably a little more in front than what it takes to get the whole tail in the shot, similar to the first shot but a little tighter.
Good points. I personally like warmer temps on photos in the fall, however, here is a slightly colder version adjusted the crop.
Amusingly enough, I didn't intend the crop to be anything more than a close-up so you could see the crisp detail in the squirrel but after seeing it, I agree, it looks much nicer with a tighter crop.