The only one thing I don't like about this picture is that you have different sized hands. Other than that, I like the pose you gave Sub-Zero, seeing how he's one of my favorite characters. Really cool!
Instead I have to say that his right hand reminds me of a Tomb Raider music video by Korn where the lead singers hand just starts contorting and being weird for absolutely no reason. The colouring on this image is breathtaking and the actual sketch itself is great. You are amazing, Josero.