Pilotwings was kind of a happy coincidence, the artwork stretched over the spine... even though it required a little cleaning up it was simple enough to use the sky backdrop for the spine as well. Personally I like the uniform black look, but at the same time it's cool if some covers have more unique spines that break up the monotomy. I always figured I would judge on a case-by-case basis whether it'd be a good idea to do a non-black spine, and Pilotwings just proved to be the first cover I made where I think it fit best. I was thinking of making the SMW spine yellow, but I opted for the black one in the end. If there is interest, I could easily make alternate versions with different spines.
