I do! I really enjoyed your melody and simple chord changes (this is great for blowing over). What were you going for in writing a C part, F, Eb, etc...? I would probably be more specific. Instruments pitched in F are rarely in a jazz combo or ensemble, but maybe you plan to use this in a piece for band or something. Now, I think it's uninteresting to constantly use all instruments in the melody and backgrounds, not to mention you always use parallel motion. Switch it up. What if you give the harmonized melody to saxes and use brass for fills? What if you have a countermelody? What if all instruments cut out during part of the solo so that you can hear the soloist better? Also, you haven't written ad lib. or used the bis (phrase repeat) symbol, which implies that you don't want deviations from what you have written, particularly in the bass, piano, and drum parts. If this piece is meant for jamming and improv, less notation may be better.
You have a good start with this piece, but I want to hear more!