You captured the atmosphere of a small busy casino well. The staccato trumpets and saxophones fit the casino vibe and their transient nature make me feel like things are moving quite quickly in this casino. The bass and hi-hat keep the momentum going throughout in a soft supporting way. I really love the electric piano you chose - I think it is placed very nicely in the track to offer some variation in the sound that is still consistent with the overall mood. My favorite moment is the trumpet chord at 0:46 transitioning into the keys section.
Constructive feedback: The section unisons of the trumpets and saxophone have nice interplay that are a little repetitive, but I think the rhythmic intricacies hold my interest. I think the repetitive bassline makes me feel like a little variation there would help elevate the stabby horns above it. I think it plays the same 2 bar phrase throughout the song and I think that adding a second variation to this would elevate this track to the next level.
Overall I think you did your homework on this track and you’ve captured many elements that give this a casino/gambling vibe, from instrumentation, to articulation, to style, to rhythm. I had fun imagining a tiny casino busy through the night while listening to this. Nice work and thank you for sharing!