Nice looking scene! It has a nice atmosphere.
What I think could improve it is that everything looks a bit too “straight” and clean. The tables are at the exact same angle as the pool table, the stools around the bar the same.
If you just broke it up a bit more, and made it seem a bit more random and not so “placed” I think it would look a lot better. 
All in all, just break up the clean lines, like the legs of the tables, just skew some of them a little, maybe one of them is a bit bent. Stuff like that.
But good work mate!