mikes graphic design example is basically the same design as mine a picture of the item being marketed and what it's called in the top right corner.
both of our graphic design examples came fromm the same edition of the magazine 'wired'. so both of our examples are reaching out and tring to sell to people who like to read 'wired'.
generaly a trend is an idea on which you base the design and style or motif of what ever you are creating.a graphic design trend would be something like making everything pink with a blue line or making everything have sharp edges.
human nature is the most key element other than insuring that the product works. human nature is what will make the product shaped how it is or colored however it is colored.
a potential audience is identified by the products uses and necessities for usage.
you must learn alot of things about your product before you want to choose which audience to sell it to.

