Nice, were you shooting all in manual? Ya got some sweet ones in this group!
Cheetah pic is a little blurry and too bright.
Same with Parrot Pic.
When shooting indoor pics remember to adjust your white balance, this will correct the yellowish/orange color in the picture.
First Girl/Elephant pic, open up your appature to get more depth of field.
Porcipine pic, crop down to remove cement out of the top right, it's distracting. Fix that and it will be sweet!
Kangaroo pic is a tad bright, you can fix that in photo editor.