I think you’re off to a good start but there’s definitely still some stuff missing. Right now it still looks a little too clean and empty. I’d add a few more tables and chairs to make it look a bit more crowded. Maybe make two or three different types of chairs and tables (EDIT: I just noticed that you’ve already got two different types of chairs - maybe just mix them a little more?) so they don’t all look the same? You could also add some wax drippings on the floor beneath the chandelier and perhaps a few cobwebs or dirt/dust in some of the corners, on the chandeliers, etc. Perhaps also try to make some parts of the floor look more worn than others. For example, the entrance area and the area in front of the bar, where you’d have the most cutomer traffic, would probably look way more worn than the floor beneath the tables, etc. Also, a few scratch marks on the floor around the bar where the bar stools would’ve been dragged around. Maybe also add a ladder so the upper part of the room is actually accessible? (Unless there already is one and I just missed it.) But yeah, I think other than that it already looks quite good :).
Oh, I’d also say that the wax shader looks a little too shiny at the moment, so you should probably revisit the roughness map on that one. As you can see in Dontnod’s PBR chart, wax is actually relatively rough (granted, the wax in the chart is a different type of wax but still): http://i.imgur.com/7H2m91Q.jpg