I don't really know how to critique jazz despite having played in a jazz ensemble, but let me just say that I sincerely enjoyed this. There are some minor critiques -- mix related, as I think you've actually done an excellent job with articulations this time around. Woah.
I think the brass is actually a bit too loud to be sustained by the rest of the composition, and the low mids have been sucked out it seems from the piece. A more balanced, centered low brass section would fill this out. A bit more centered kick and snare would help as well. Strings also could be pushed a bit further into the back with the exception of 1st/2nd violin
I find I wanted this piece to go on forever. It's spicy