This image was rejected due to quality issue,please tell what issues it had

[nikhil_.8511]

[daniellei4510]

It seems obvious you want to provide ample room for copy, but I think less copy room and more subject, like 50/50, would have been more interesting a concept.

[Jill_C]

The background seems quite noisy, there are bands of uneven color, and halos around some of the objects.

[Abambo]

What about exposure:

As for the nosy background, I'm not sure that it is not the paper (it's a paper?) texture. 

As for the rest: This is not the originally submitted picture, and it exposes even as this artefacts here and there. 

But you can't expect us to do a serious analysis of the image on a sized down screenshot.