Details only exist if you notice them. Once you know your focus or general theme of your observation, you know what direction the details should lead in. If the disproportionality of the world is the focus, the the sizes of various objects are what to look for. The details are supposed to "speak." Two approaches are evident from this point: know the details and find what they say, know what they're supposed to say and find the voices that are speaking.
If you don't even have a vague conception of either, then why did you even decide to start writing about this apparently impossible-to-describe world in the first place? If you have neither, rather than fabricating details, (which are more or less, objectively set) create a message(which is mostly subjective) of any sort and milk it to depletion.