I've always liked the idea of the common exercise to take a concept and then illustrate it. (I don't remember actually doing it myself, but I've always meant to.) While coming up with an idea for my next illustration, I thought of that exercise and realized I had finally done it (albeit accidentally).
I drew this with a Staedtler pencil, inked it with a Tombow Brush Pen, and colored it in Adobe Photoshop CC. The background was created with a couple of photographs and a lot of Photoshop effects. I really like how it turned out.
What do you think? Let me know in the comments.