I hesitated to post this one because it is a little more tossed-off than the stuff I usually like to share, but I am sick of looking at that Supergirl cover with its predominance of red, blue, and yellow. Superheroes sure seem to like those colors for their little outfits.
This is just a very quick sketch I used to experiment with in Painter and Photoshop. It was drawn in blue pencil quite roughly on printer paper, inked with 0.3 and 0.45 Pigma markers to clean it up, and colored in Painter. I used Photoshop for clean-up, overall adjustments, and to create the background design.