Good mix of styles
I liked the progression of the arrangement, but I felt like there was about 2-3 minutes worth of ideas in the song. Shortening the song to just that main parts of the arrangement would not only more succinctly make the song's point, but it would also avoid repeating the same 4-bar progression for too long. It might help to change things up about halfway through the song and then recap the beginning at the end.
Overall, though, the mix was good, the instrumentation worked well and I think this song compares favorably with your other Chicago RmK.