Where do images come from?

I had seen the "consider before you read/view" at the bottom of the page, well I decided to read it and it told me to see what jumps out at me first. What immediately grabs my attention. When I turned the page, the first thing I saw was, what looked like to me was a human "blob". It didn' really look like anything at all. It has legs and arms and a long body that blended into its head, kind of like a black bowling pin. It was standing next to a boy on a porch. Underneath it, it said "the both of me". I didn't really know what that meant. Maybe it was what he really looked like (the little boy) and what kind of person he was, like a monster.Or maybe it was just something in his imagination. But I think the reason why I saw it first was because it was kind of the only thing not surrounded by color. Most of the images are colorful, but this blob is black, and the background(house) is just white. So because of such contrasting colors, it immediately grabbed my attention.