Asking Dee about this in visual terms is a LITTLE like asking Emily what humans in general smell like. a) Being such sightbeasts, humans don't usually have strong vocabularies for scents, especially mild/neutral ones. b) Emily herself isn't a supersmeller or a sommelier or otherwise had to focus on developing her smell perception. Dee does have the extra problem of nobody else in existence with whatever his sensory apparatus is, so nobody to develop a language about that sort of stuff with. Theoretically he could try to come up with something just for the purposes of talking to himself, but... :/