Ha, not crackle filter, looks kind of simular. Instead this is a program that creates random squares until the whole image is filled in. I did this five times then layered all five together to get some transparency in there.
Excellent self-portrait in style, Michael! Great work with the squares, wonderful minimal color! You can get quite a bit of implied detail (like your watch) despite the squares' blending effect, it's very cool :) Ina