Cool
So this was a nice drawing you have here I like the "B/W" style you have here its really good with some shades and whatnot, I think you could ad some type of color maybe "FRAMES" or maybe some added color or maybe even some colored frames while the rest is black and white thats just a simple Idea to run with.
~~THINGS TO IMPROVE ON~~
Some colored frames or borders while rest is black and white.
~X~