Looks great, Lassig! Congrats on being done! Again.

I don't know a whole lot about trees and which do/don't make good pond accompaniments, but think you're on track with finding trees that will add nice color with the seasonal changes. Maybe look for trees that also have nice spring time coloration. And I'm sure none of us need to tell you - KEEP THE TREES AWAY FROM THE POND!!! Would hate to see you back where you just were!