Oh, how I absolutely loved doing this project! I started out only planning to do a simple pattern in a shape, but I got carried away and ended up with the last two results below. In doing these, though, I got confused (including losing track of layer organization, etc.); but, I just kept trying different things and learned a lot in the process. I also accidentally forgot to save the .psd on the first of the two. Sigh... I will probably try to recreate it, though -- good practice.
Btw...if any of you all happen to see this, I just want to say that I am loving all of your projects that I've seen so far, and your amazing creativity! : )