Hi all - feeling rather dull-witted at the moment as have completed the puzzle, recognised the theme (like Novalis remembered from the dim and distant past) and identified the four characters and further object, I find myself unable to understand the reference to "appropriately represented according to their character". I've found them, three straightforward and one less so, but googling hasn't helped to understand the appropriate representation. I'm likewise stumped regarding the highlighting of the 'housing' - in my BRB this is a single word, not two words. I've found this or these word/s but I'm not good at visual representation so the reference to 6a is not meaning much. Or perhaps there is a subtle play on words?
Basically it's ready to send off, but some of the 'why's' aren't answered. Responses might give too much away so will email Slaney, but wondered if there were any comments on the 'two words/one word" question