I did this in my sophomore year for art class. I'm a junior now, so I actually just made it last month.

Anyway, tell me if ya like it! ;]

Here it is, finished
Here are close-ups of them. :]
http://i43.tinypic.com/dmd1eh.jpg -small shape/large shape
http://i42.tinypic.com/2qb85k2.jpg -soft edge/hard edge
http://i40.tinypic.com/2i6yj4k.jpg -texture
http://i42.tinypic.com/um1wn.jpg -dark/light
http://i40.tinypic.com/k1s3ev.jpg -warm/cool
http://i43.tinypic.com/2ah7ib5.jpg -geometric shape/freeform shape
http://i39.tinypic.com/2s9wp6c.jpg -complementary opposites
http://i44.tinypic.com/2ykg7df.jpg -dull/bright
http://i39.tinypic.com/e0fvo5.jpg -pattern/no pattern
A little sloppy, but hey. I made it during exam week.