Baffled for Hard Reject on Texture

I had two texture rejected on “quality standard” grounds, yet the textures are the same quality as the ones that already have gotten approved for sale, so I don’t really understand the reason for the reject. Can someone give me some feedback, please?

(The images below had been resized. Originals are 3x times bigger)

https://drive.google.com/open?id=0BzSdDGhFYHYmcEVjVFVEcmVQcUU
https://drive.google.com/open?id=0BzSdDGhFYHYmUzV0dkJ0T2NFVW8

Thank you!