Little big band arrangement of "Fly Me to the Moon" - my first

Not a professional musician and never tried scoring anything before except for a few songs I'd written for the piano. Have been amazed by MuseScore and am spending hours at the computer, a little Yamaha keyboard by my side. Once I downloaded MuseScore, this was written in about a week and a half. Amazing. I'm blown away by this program and especially by the fact that the synthesizer gives you immediate feedback.

Appreciate any comments.