Yep anything with high sss is a pain in the system (literally if your computer doesn't like doing that kind of thing because it can get pretty intensive) XD
I feel like you needed a tiny smidgeon of texture on the cigarette skin and butts as they look a bit on the smooth side. After that maybe play with the lighting a little bit more to get it a bit more atmosphere, even though it's alright I feel like you're lighting more to show off the models than lighting the scene.
All the assets look pretty good, I really love the barrel texture the most :)
RE: Evening in the Pub - 3D/blender/realism