This was originally a piece I drew back in 2012 and while I remained generally happy with the layout, with each passing year I grew increasingly unhappy with my technique at the time.
So I decided to go back and take another shot at it. I had originally intended this to be a quick re-colouring, but upon inspecting the original sketch, I felt it needed some refining in various places, and ended up re-drawing some of the portraits.
It's still not perfect, I had to cut my losses in a couple of places because my elderly computer was screaming at me toward the end, but it's still a helluva lot better than the original.
Dark Knight Trilogy Colour Process