Photo rejected due to "technical problems"

Hi Andreas,

The composition is good, but in my opinion, in addition to the noise, (which is not a technical issue) the image is not looking natural. It appears as though you add special effect, or filter. If your photo is not looking natural, it will be rejected for technical issue.

Technical issues:

https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html 

Your white background shows some other small dirt spots as well - did you take this on a lightbox?

There are signs of noise on the lemon.

You may have used too much sharpening. I think contrast could be a problem as well.

It's a nice icture, but I see a lot of noise. The picture looks either like a phone image or it has been taken by a small sensor camera.