Leonardo, Donatello, Raphael and Michelangelo.
I just wanted to draw something dumb for fun, but it turns out this year is the 25th anniversary of Teenage Mutant Ninja Turtles.
Poses referenced from this
. Took off the elbow bands and knee bands because they got in the way of the masters' finely sculpted physiques (almost as finely sculpted as some of their works).