This is a mosaic of astronaut Bruce McCandless II performing a spacewalk (extra vehicular activity, or EVA) in February 1984 as part of the Space Shuttle mission STS-11. The original photo was taken by NASA.

The mosaic is made using my own algorithms, which are used to create tiles of three different sizes, which are then selectively masked by hand. All work is done on Linux using my own code at the Terminal, with finishing touches applied in GIMP.

Equipment used: Linux scripts; GIMP image editor
Size: A3