I want to continue to grow as a photographer and would like to know which is the technical problem of this photo to not make new mistakes.

[#1]

[#2 · Accepted solution]

This is likely due to the sepia toning. Usually if the photo has 'special effects' filters applied e.g B&W toning, it gets rejected for technical reasons. It is best to upload in the orginal colour. Buyers can add their own effects.