Try the non-mobile link: https://twitter.com/SciencePorn/status/634547730271064064

The "Ze first image" looks the same whether displayed in Firefox or with the default "Windows Photo Viewer" on Win 8.1. I did have an apple/peach image that did display differently on the same machine about a year ago.

Someone in the twitter thread said that the image looks different on a black background. When I click the image it shows with a white background, so maybe it looks different on mobile? I put the image on a black background manually and here is what it looks like: http://i.imgur.com/91qsoKy.jpg

I didn't either, but interestingly on this image and the ones on the OP, if I tilt my laptop screen (Macbook Air) such that I'm looking at it very obliquely I can see the other image..