I like the initial look at and feel, how ever an image like this is waaaaayyy too grainy for any actual production. Simply just not good enough. No client want to showcase any interior that looks grainy, whether its physically correct or not. Id love to see this image after 2 hours instead of 20mins... I suspect that with low light the grainy-ness won't go away though.
Also has anyone done any successful animation in Corona? without having totally out of proportion rendertimes and still a decent look? im curious :) keep it up!