There is something very intriguing and mysterious about a picture that shows only a small part of the object. It forces the viewer to make up the rest of the picture, lots of space to fill with his own mind.
And then I find myself simply just liking this kind of pictures.
Basically the pictures in this album are just some very special cases of those plenty of "empty off-center" pictures I do rather often. Due to the effects of gravity on anything with mass, most of the pictures have the object in the lower corners.