Abdel I like the model. I see a lot of work here!. Although (in order to improve it) If I were you, I should work more in the texture and/or color of the plants (they look a little too shiny for my taste in order to get a "more natural" look). About "The scale" of the objects, I think that if you reduce the size of the map in the red and white marble on the counter a little bit, you solve the problem...Sometimes "the real size of a map" like a brick in a distance for example, has to be re-adjusted to a "fake" size in order to "cheat" the eye...depending on the observer's distance. About the illumination I would try "turning on" the lights below the bar to see what happens, and in general, work on the decay value of the rest of the lights to get more realism and also control the reflections in the wood of the bar. In the big lamps of the ceiling I would increase a little the transparency of the cristals...another good idea is to try to simulate a Tyndall effect (Light scattering) adding some fog and make the light create some nice "Atmosphere" effects passing through...but I have to say, I've tried this, and It is very difficult to control it and get a good result!...finally If you open the image in Photoshop and Apply (Auto tone, Auto Contrast, Auto Color...from the image menu) you split the whites from the Greens on the ceilings and (beleive me, I've tested on your image) the image improves A LOT!...Despite all these (we're among pro's in this site and our eyes are meticulous for approaching perfection). Despite all these I think it is a good work pal! I hope my comments could help