I feel rendered display would really benefit a lot from having ambient occlusion added.
And some sort of shadows for rectangular lights.
(I think if you add a low res shadow map to it as if it were a spotlight pointing from the center, a soft shadow could be faked quite with better results than having no shadows like today)
EDIT: This happens when I set the environment strength very low (0.2), then the ambient occlusion drops too, and visually that doesn’t look right. I forgot to point that out!
This is on V6, I have not tried V7 for this though, so if stuff has been done then excuse my ignorance
Here you can see the same scene with arctic, rendered and raytraced mode: