Nice. I spent a few years in Duluth in high school and beginning of college and know these scenes well. Canal Park would be a really fun place to fly.
I don't know if you did or didn't break any rules, but do keep them in mind (seaplanes, over people, and so on). You may be perfect here, I don't know, I'm still learning them myself.
But - yeah, good stuff! Knowing the area, that's pretty fun to watch. Thanks.