It’s done, baby! Everything’s getting approved!
Just to show the issues with printers: Here are two proofs from Amazon—produced by the same company at different times.
I never altered the colors. You can also kind of tell that the image is further to the left on the top cover than on the bottom—that gets especially notable on the spine.
Amazon isn’t particularly bad at this—all printers do it, it’s just the nature of the beast. But it’s something to keep in mind when designing covers, you have to build in at least some error tolerance (and try not to be all Walter White about it).