Artifacts

Hello,

I tried to contribute an image to adobe stock program, which I recently shot.

That image got rejected because of "artifacts". Since I'm not a professional, I may not have the eye for that, but I don't see this problem on the pic. I think I shot it in ISO 100 and propably did not much post processing (eventually some colors in camera raw; cannot remember exactly). Also I doubt there might be dirty sensor, since I cannot change my lens therefore there should be no dust on it). Maybe I just cannot submit pics from my cam, since it's not actually professional grade actually ("only" Lumix fz200).

But maybe it's just something I can look for next time to avoid these problem. Would be happy if someone with more experience could find out 🙂