edited images not being accepted

Hi all,

I uploaded some winter images they did not get accepted, despite I uploaded before the original version of one of them, which was okay.

I also sent former pics I photoshopped and they weren't fine to Adobe Stok

Any idea/experience? Even just a link to a page that explains in detail the selection criteria would be awesome.

I attach down there the photo I improved to sell online, as its original.

All the bests,

Giovanni