Excellent points by Granddad; in addition to that, I would suggest going with strobed lighting rather than relying on ambient. Two inexpensive speedlights could have turned this from "almost" to "Damn!"
In addition to eliminating the need for high ISO, large aperture and low shutter-speed, in the first image a speedlight close in camera right would have eliminated the rather harsh and unattractive specular highlights on Batman's left shoulder. A second light, camera left would have allowed for the addition of some much-needed fill. In the second, it would have allowed sufficient DoF to have the seen in focus and much more attractive and dramatic highlights.