I was hired to create a T-Shirt design for a new apparel brand called Saltopus.  I was given only the direction that it had to include angry monkeys.  I illustrated a few concept sketches, and the client chose this concept, of evil monkeys emerging from an innocent looking Barrel of Monkeys toy.  The shirt was designed to be just one-color, which always poses a challenge.  Since I have no highlight or shading color, I really have to pack a lot of detail into the lineart and make sure it reads well from a distance.  We are both very happy with how this turned out.