Everyone loves the visual sensation, then sounds, and maybe feel/touch, but does anyone every imagine the smell or taste of things. Obviously: proportion and realism is not an issue unless that is what you're into, but do you ever imagine a certain fragrance or palette that enhances the experience of the other senses? You don't need to actually smell or taste, but the idea of it being so. These senses can be whatever the person desires, so go nuts people.
Updated by kamimatsu