Another great pinball build! Fantastic work Kurt! I've just recently decided to build a virtual pinball and I'm looking to gather as much information from as many threads as possible. Yours will definitely be a resource!
Regarding the side art..there are a few things that I'm not a fan of and thought you'd want the additional input...
1) Have you ever looked at something one way and then always see it that way? (A little like the old 'is it a rabbit or a duck?' picture). To me, the pinball with cape and hair looks like a hole with a cape hanging out.
2) The people are pointing up, but 'Superpin' is to their right
3) How's that logo gonna look on the other side? Imagine the big 'S' closer to the flipper buttons, leading to the narrower 'n' toward the thicker back part of the cabinet.
4) I don't see the need for the additional 'Superpin' on the top.
Again, kudos on all your hard work that is obviously paying off!