okay... I have finally thought of my theme! I am going with the 5 elements of ancient chinese philosophy: water, wood, fire, earth and metal. It leaves it pretty open to interpretation ;) I had just got back from fire practice and I am pretty much a water baby... and lately I have been experimenting with textures so this seemed like a fun theme. You could take them literally, or just incorporate one or more of these elements in your drawing... your choice! Have fun with it!