Quite beautiful, I'm assuming the windows are all in the proper location too? They appear to be? Definitely the best seat maps I've seen anywhere by far! The port & starboard light colors are a nice touch.

As others have motioned about the differentiation between the various economy seats, I think blue for E+ and white for regular E is better as it would match the actual UA seatmaps. It may be more informational if the entire seat was one color rather than just the headrest though I guess the intent is to reflect the actual appearance of the seat. Maybe if the headrest was a bit larger...

You may also want to think about the label for Business as the same seat may be marketed as Polaris, Business, or First depending on the flight. Its rather confusing for non-frequent fliers.