I, too, initially favored the red panda, because the others were too heavily cropped. That being said, I didn't think the panda was a strong image. For one, there's insufficient subject-background separation around the head. The bright highlight along the left edge of the tree is also distracting.
It's hard to tell from the small pics, but it looks like the images are lacking nice catchlights in the eyes. Additionally, it looks like the sharpest point on the sheep's face is the nose/mouth. The eyes are less sharp, falling in back part of DOF.
The OP asked for a selection, not critique, but I think maybe she should try again, at different times, wait patiently for the right light. The panda would look great with some dramatic rim lighting (and consider popping a flash, just to get a catch light in the eye, not to light the subject).