Just another process blog if anyone is interested. Really liked making this one for the tumblr site Wizarding Wednesday, check it out, and if you're an artist you should definitely contribute!
Original drawing and gouache painting stage.
Color masking stage, where your graphic design sensibilities come into place.
Trimmed version of the original painting. Once trimmed to the color mask shape I use the stamp tool to "push" the inside color out to the edge, hiding any hint of a contour line.
When selected I can paint freely without going outside the dotted line, I used some very light multiply, overlay, and normal layers. I also color balanced it abit.
Done. Added some hand lettered type that I've been learning from my wonderful wife Karen, find her here.