i dont think that one would ever get printed, i dont think people like the doodle sort of designs. even when theyre a good idea it just feels like it wasnt much effort. (not that im saying it wasnt) you should work back into them
Jazz up your presentation too. Display just the design on a solid colour field so it can be larger and show the detail. You can put a little T-shirt (or a photoshopped model) off to the side to show placement.