Doesn't look so good in black and white; all the little figures are very stark against the white spaces. I plan to color the original with markers and maybe colored pencils; no idea how that's going to go. If it goes badly, I might try coloring it digitally, although I'm rather intimidated at the thought of digitally coloring all those little figures. O_O
Or I might try re-doing it on a larger piece of paper. This was done in my 9x12 sketchbook, so it's pretty small for having so many fiddly bits in it.