I think animals are particularly conducive to getting weird. I tried a picture of a sailboat and it wasn't that weird.

Then I tried a picture of a puppy and it sprouted another face on its paw and subtle eyes throughout its fur: http://i.imgur.com/N8Izxm1.jpg

Yeah, it seems to pick up on eyes very heavily.

I did one of a landscape of the Blueridge Mountains and it added a bunch of buildings on the mountain tops, and insects in the sky :P