I recently submitted a photo of a cityscape to Adobe contributor but it was not accepted. Along with my other photos, my photos were labeled as "quality issue" but there were not specific explainations for where the flaw is. Does anyone know why this photo would not be accepted? Thank you.
You won't get precise refusal reasons. Quality issues mean that the asset does not meet Adobe's quality standards. You can check those in the documentation.
In addition to the quality issues as pointed out by @daniellei4510, you would also have got an IP violation refusal:
The moderator choses only one reason, and that is normally the easiest to spot.