Graphic design can be applied to just about anything. For me, most times, it is about taking the appearance of something in a raw or unpolished state; and making it shine visually and functionally.

Graphic design is very subjective. What one may love design-wise, another may loathe - and vice versa. It is important to always keep in mind your target audience: Will your intended audience or clientele like what you are showing them, (and like it strongly enough to react the way you would like them to), to whatever you have on offer?