You're sort of right - yes and no. ;) I wanted the whole thing to look like a fantasy world rather than a real world, and that's why I purposely put the light rays coming from all angles. The scene beyond the windows is not specifically an outside or an inside scene, it's just a fantasy representation of another world. What it really respresents is up to the viewer. That's why I tried to avoid clouds or hills or anything that looked remotely like a photo. I think adherence to natural laws is essential for some images (e.g. photorealism) and optional for others (e.g. most others!)