Aye, I'd second the possibility of the overpowering nature of really strong colours. One of the houses I lived in had 'womb' coloured walls, and felt very dark and overwhelming.

That's not to say the colours are bad, just they might need a little moderation. Either that, or perhaps very bright lighting...

I can't stand cream walls, incidentally. I've lived in rented places for too long now, and cream is the universal dull colour for walls.