Oh ps- I don't think you can edit posts here, can you? -one thing that REALLY helps in CG is imperfection. People spot perfection, and say "oh, it's a computer pic". Add some randomness to the quilt squares, as well as reducng the size along the y-axis. Give the wall panels some irregularity, and of course the window wall will have narrower panels at the corner, widening on approach. Also, why not throw a few dust motes in that sunbeam with a light fog?