On this page: http://headachecomix.com/about, the image headache1big.jpg is 1584 x 2153 and has a size of 3,594,579 bytes. This takes a long time to download on a slow connection. This is definitely bad UX, but I seriously doubt it was intentional.
There’s deliberately bad aesthetic, which I don’t mind, but this is bad design because it wastes bandwidth. The image could be resized to the display size without losing its visual impact, and it would save users a lot of time.