These are interesting results you get through free-lensing. I have never tried that but may give it a go. Some of the pictures remind me a lot of my Lensbaby shots (a tilt-shift lens), very dreamy. I like them a lot.
It seems very human that once we reach or have seen too much perfection we are on the lookout for imperfect perfection. I can relate to that very much e.g. lens flares and sun-rays are magnificent (did a post not too long ago).
RE: Freelensing - experimenting with photography gear (series of images).