The dial background is from a close-up photo I took of an 80-inch “great rhombicosidodecahedron” on display at the Palm Springs Art Museum (California, USA). The artwork consists of stainless steel, specialized glass and LEDs.
Lately, I’ve gotten into the habit on vacation of seeing something cool and wondering whether it might make for a good watch face. I think I might need to see a therapist! 
Clockskin Zip File Download Link: Great Rhombicosidodecahedron
Below is from a photo I took of the full 80-inch model on display at the museum:
(I added the text and background color)
(For those interested, the great rhombicosidodecahedron is the most complex of the 13 Archimedean solids. It consists of 12 decagons, 20 hexagons, and 30 squares, with one of each type of face meeting per vertex.)