What technical issue is there in this picture??

Focus is a problem, your picture simply isn't sharp.

The noise level is very high as of @jacquelingphoto2017's analysis.

The picture is slightly underexposed.

You should correct the geometry and could reframe the picture to put more emphasis on the flash.

If you have the chance to take a similar picture next time, you should allow for a longer exposure time to get a nice night view of the skyline.

If you are new to stock, you should consider these resources: https://helpx.adobe.com/stock/contributor/tutorials.html
Please read the contributor user manual for more information on Adobe stock contributions: https://helpx.adobe.com/stock/contributor/user-guide.html
See here for rejection reasons: https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
and especially quality and technical issues: https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html

Hi @sachhidanand5C7F ,

Your photo is underexposed and extremely noisy - both luminance and color noise. I do not believe you had enough depth of field either. Focus seem to be a bit out. There are too much harsh black and will not do well on print.

Best wishes

JG

Photographer and Nutrition Author

Nice catch.

You should crop the image. it needs to be sharpened and the house lights darkened out. the sky should also be darkened.