Could anyone provide me with some feedback on this rejected image?

The issue was "quality issues" , I would love some feedback on how I can improve this photo, or if I should just scrap it.
Also, I am quite curious since not only did I submit this yesterday, and it is one out of a lot of images I submitted, it was rejected, despite having some images that have not been reviewed after 20 days. Are images randomly reviewed, or reviewed in order? Just something I am curious about.

