my photo is rejected due to quality issue plz help what is the quality issue in this picture

Hello,

I think you composition could be improved. Read this guide from Adobe about composition:

The basics of photography composition | Adobe

Hello,

I think your composition could be better. There are exposure issues as well.

Composition:

The basics of photography composition | Adobe

Though a full-size image is needed in order to properly evaluate, I can see that it is underexposed with distracting background elements that should have been edited out. In terms of composition, it would have been better to not crop out the tail feathers.

From this thumbnail I can already tell you that exposure, cropping and the chain are a problem.

To check the quality of your photo, please post a larger image.
At AdobeStock, we zoom in to 100% to check every detail.
It's not possible to see it on a smaller image.

What I can see in this image is that the tail is cut off.
The left side of the bird is in shadow and dark.