Photo not accepted - quality issues - please help

Hello,

Read about composition...

Composition:
https://www.adobe.com/creativecloud/photography/discover/photo-composition.html

and

Uer guide:
https://helpx.adobe.com/stock/contributor/user-guide.html

... to get started. 

It is cropped too close and if you look at 100%, you can see that the focus is not sharp.

Focus is not sharp enough, and it's cropped too close. I wouldn't bother with submitting floral images unless you find a really unique species, because Adobe already has many millions of flowers. Search on the Buyer portal for "yellow rose" to see what your competition is.

The composition is too close and the petals are cut off. Also, I'd put this in the category of a "snapshot." I'd recommend you check out some of the other flowers images on Adobe Stock. You won't have trouble finding them...there are over 48 million of them, so the competition is tough.