Sketched with red bic pen. Inked with black bic pen. Took the red away using several techniques.
I think I need to take my youtube video down, because that trick I figured out did NOT work out.
Colored in GIMP.
Lettered and paneled in Inkscape.
Both open source (free) software.
I was pleased with the results, although I hope the funny to pretentious ratio is more towards the former rather than that latter.