Why are the photos in my gallery I downloaded my from Reverb to my S5 appearing as negative images?

[AC Question]

The gallery I downlded from my Reverb to my S5 appears as

I've already performed a factory re-set to remove the photos and videos and have re-downladed by syncing both phones. The result is the same - negative images.

 

[Rukbat]

Re: The gallery I downlded from my Reverb to my S5 appears as

Copy one of those images to a PC and look at it. Negative or normal?