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It's overexposed, not underexposed. Night pictures are living from having parts of the picture quite dark. You have also a noise problem (both luminary noise and colour noise). For the rest I refer to @Jill_C's analyses.

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Please read the contributor user manual for more information on Adobe stock contributions: https://helpx.adobe.com/stock/contributor/user-guide.html
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It's a long exposure, which, if shot on a tripod, should have been in focus; but it's not. The verticals are not vertical, there is an odd color-cast, and the light trails are blown-out. When shooting light trails before it is fully dark outside, you probably needed to use a ND filter. Additionally, there are billboards and logos in the background which would have caused the image to be rejected for IP violation. Finally, you need to be aware that it is not Adobe Stock's job to help you become a good photographer. There are photo sharing sites and photo blogs (Flickr, 500px, etc.) that you can join to study photographs and get feedback on your images. 

Hi @Nicobanzai ,

The frame is out of focus, and has a white balance issue. It is too yellow. Also, it is underexposed and the highlights are too high, thus, destroying details.

Best wishes

JG

Photographer and Nutrition Author