Marcus's Tower at Sunset Promotional Poster

A simple promotion poster for A Foundation in Wisdom I'm thinking of printing up and hanging in my office. It's not the best or most accurate description of the book, but it satisfies the criteria I needed it to fit:

It needs to be simple enough to read from a slight distance, and pique the curiosity of any visitors. Most of my visitors are my math students, so I focused on the proof instead of the main arc with John + Sheridan that the "official" blurb uses.

MyPaint + GIMP, Ubuntu