Technical Rejection of photos

Look at your pictures at 100% and 200% and search for artefacts an out of focus elements.

First:

too small to examine, but I would guess out of focus of the blossom.

Second:

No details and washed out colours. Also, around the roof of the house is kind of a halo.

Third (chameleon):

out of focus. The whole chameleon is out of focus.

Fourth: 

bad photoshopping, out of focus, noise on the feathers.

Fifth:

The tree is in focus, the apes are out of focus and have washed out colours.