I drew Lars in the old-fashioned way, pencil and paper, then scanned in the pic and traced over the lines in Flash using the Paintbrush tool.
Everything else was done in Photoshop. The background is a cheap and cheerful Filter > Render > Clouds; the text is LunaITC TT Bold with a drop shadow.
I'm pleased with the aircraft shadows: a Spitfire pic found through Google Image Search, made into a black silhouette by clearing the background and applying a Color Fill, rotated, resized, plonked onto the background and made semi-transparent.
I know in a couple of weeks I'll wonder how I dared to call it art. But for now, I'm happy.