I've always dreamed of being hired to do a Batman cover so I decided I would give myself that assignment as I continue my experiments with gouache/acrylic.
Here is what I came up with. It is painted with gouache/acrylic in grayscale and then colored in Photoshop. I am also going to finish it in color traditionally but wanted to scan it in and do a quick color overlay in case I destroy it as I add colors. I'll post that as well when I am done.
The grayscale painting...
And the build up... starting with a thumbnail, then a tighter sketch after taking some photo reference, and then a value and color study.