I think this is a real image of Mars. It's so beautiful and surreal that it can't be a fake, unless the faker is a great artist.

Scientifically, it's wierd!

My slant on this is probably 180 degrees different to everyone else's (as usual)

My thought is that the flow is not from left/bottom to up/top, but is in fact flowing the other way, down to the bottom left, and that those blunt-ended "channels" are slump features burrowing back up the dune slope (which is why they end in such neat rounded blobby tips, rather than a heap of the stuff that's slid down the channel)

The lower end (the dark messy bit has lots of channels trying to start and work upslope but they compete with each other and only a few survive to work right up the dune face.

I'd love to get more details on the location. Must put my spies to work on this one...