This scene is a basic lighting test scene I found at one of the free sites, to come to grips with lighting. Also to test out some lamps I hadn't tried in TG3, mainly the art deco 'flying saucer'(my name) lamp I found and lost in my directories and the floor lamp I couldn't get right before the Glass shader came about.
The scene has 6 spotlights, 3 obviously on the paintings and the other 3 are anchored to the ceiling above the stairs to the 'loft bedroom'. Also there is a twiggy flower in the vase that I forgot to dial the specularity on so there's leaf glare...sorry. And also forgot to dial in transparency on the back lit trees outside. At this writing the render has been running 10 hours and at least 3 of those are on the reflective marble coffee table and contents...Will I ever learn hee hee hee. The table area is still going...slowly. A few things I'll fix if it seems to be worth another 10+ hours are the paintings will get centered on the panels, the base of the couch will get the same texture as the ottomans, replace the twiggy flower with an XFROG plant, tweak the trees and make the top Glass part of the flying saucer metal so it can cast a shadow...the current shadow made me go d'oh this morning when it revealed itself....sigh. Also replace the flooring with a much higher res texture. As a part of it's function, the floor lamp lit that area and I may replace that with a chandileer more centrally located. Oh yeah, center the painting spots better but that will get done when I've fixed their spacing. These long renders are handy for critiqueing your work and writing the comment heh heh heh.
Thinking I may put a patio out the window with garden lights I have and turn this into an evening/night scene. Even more complex lighting but the lighting doesn't seem to be a render problem, just that gol durn Reflective shader....