Looks like woodprinting or something done via screenprinting. It has artistic value, but I see it being used more as an illustration. Reminds me of Edward Gorey. You have a definite artistic style, and you might be able to market drawings like this as illustrations for magazines, website articles, and the like. Only suggestion I can make is to slightly lighten the background. Everything else, I like. Oh, consider doing the same art piece, but turning it rube goldberg like, or inserting hieronymus bosch type oddities. The criticisms I'm seeing in this thread about it not being a typical art piece might vanish. Intricate drawings with humor I think are awesome. Oh, another thing: it's a bit difficult to differentiate between the objects and the background. Do something to separate background from foreground, if just by thickening the objects border.