Nothing seems to be in clear focus. Have you taken any professional training in commercial photography? Nature photography is particularly difficult because Adobe's customers demand absolute perfection, with no allowance for how difficult or rare the photograph may be.
Look at your images at 100% and 200% to see the artefacts. The crocodile picture, however, is an easy one, you even spot the problems at a much lesser viewing size.
You have no details in your picture, there is a lot of "bloc-noise" because of the in-camera processing, you have chromatic aberration (green and red borders) in such an amount that I wonder if the picture got zoomed digitally… The picture is also overexposed.
I have the same problem. I dont know what those technical issues are.
1. Check that your photo is of the highest commercial standard, suitable for a multi-million dollar advertising campaign.
2. Check you have read all of Adobe's rules and guidelines.
If you still don't see the problem, please share a picture with us. FULL RESOLUTION not a shrunken copy. The experts here can often make good suggestions to improve your pictures in a way that Adobe will like.
Thank you Veronica, I like your choice of subjects but the composition is too tight for the first picture, and the focus is not sharply defined in either picture.
Thank you, as those examples I have many more... and I am sure its not only a matter of focus. The tight composition do you mean too many information on one picture? images too close to each other? really I dont get to understand what type of pictures do Adobe needs becausa Ié submitted different types of photographs and only 4 or 5 have been accepted. I´ll keep trying but it would be easier if the specifications or chacarteristics of the pictures would be clearer.
Composition: your cropping is tight, not going to the edge of the object. You should not use a tight composition, because the person who licenses the image will have their own needs and can easily crop smaller.
Focus: please describe carefully what you consider to be in focus for each picture. To me the focus is a problem, so please say what you planned to be in focus, and what you planned to be not in focus, and why in each case.