listen to this and try to imagine the scene http://www.youtube.com/watch?v=qGG4tYK8ySY
Honestly I was pissed that Sombra didn't get more time on the show, after his demise hes practically a blank slate and, lets be fair here, do you seriously think a shadow being can be destroyed so easily?
I put that in mind when I drew this and I love how it came out (save for the placement of the muscle lines.)