im looking for some kind of art work to decorate my decidedly bare walls that currently encase me in my new flat, the walls are magnlia, the generaly scheme is brown and the paper on one wall has gold on it.

I was looking for some high quality art work to display on these walls and i was wondering if anyone could suggest anything, or any website that might sell such a thing? Ideally i would prefer somthing on a background of either brown or black as opposed to full colour picture, it has to be pretty big too since there are three empty walls and i need to take the focus off of them. Simple is the key i was thinking of, for example a single colour logo or a single character (i was looking at sol badguy). But im open to suggestions!