The Tool of Tools by Christophe Kiciak.
Technically, these are all photos of my hands. I made 400 shots, and ended up using about 200 of them. I did not use any custom brushes: this method was not precise enough to my taste, so I just masked them all and organized everything on separate layers (around 570 of them). Each hand photo has been masked, resized, rotated, deformed when needed, (de)saturated, brightened and/or darkened, so that repetitions would not be too much visible.
In order to help preparing the hands shots, I actually made a normal self portrait, which I used as a background to be covered with all the hands. I drew lines on it, to create supporting shapes and flows, and also used its natural shadows to emulate the depth of the original scene using all the small hands.
I hope some will like it!