This design is inspired by setting a fighting scene for a kung fu/ninja movie. It has the characteristics of a cartoon but with some realistic details. And yes, those are tons of half tone dots instead of gradients.
This is my 100th design submission to Threadless as SteveOramA! It is quite fitting for it to be a TMNT design. The turtles are the first characters I started drawing back in my early years of school when classes were boring (that's everyday).
I have stuck with them and drawing ever since and it has now come full circle.