Thanks Kal! You make a good point about the Cloud model. My reckoning was that the model is so small that it is more of an Easter Egg than anything else, but nevertheless you are correct and I shall consider which model to have in its place. Vivi sounds good (also, Cloud would have been what... 16 years old??)
That lamp shade is giving me a world of trouble, and I'm considering replacing it altogether. The material is reflective because I didn't really know what I was doing when I was messing with it, I'm a lot more experienced with Thea now, and I know how to change the reflective settings, so the material is no longer reflective (or at least it shouldn't be), but the main problem is the light source; it only appears when I run the lowest quality rendering, otherwise it is not lit, and it's wearing me down.
JMP - I've just thought, do you think that it's because the pointlight is within the group of the lamp? If I remove the light from the group of the lamp, so it's on its own, do you think that would fix my problem? I can't see why it would, but it's the only thing I haven't tried. I'll try it when I get home, if that doesn't work then I'll swap over the lamp shade completely.