Nightmare wallpapers

A fan of my photos keep asking for large resolution versions of various pics (I usually put online web-optimized stuff) so I cave in, that's the explanation for me having often posts like this.
The images below are pretty-much made in camera (they were edited with GIMP only for crop, resize, BW conversion and color curves adjustment). The motion blur is created in-camera, with the following recipe (which you can learn looking at EXIF data): put a somewhat long exposure time, 1/10-1/15 of a second, start moving the camera and then press the shutter. The first and the last are made moving the camera on the vertical axis and the second by rotating the camera and zooming at the same time - pretty easy but you will need a bit of exercise to achieve a smooth movement.