I don't think your pen looks "busy" at all! It looks like a very deliberate and precise plan. From the photo, it looks like flawless execution. I would buy this pen in an instant, BUT you should keep it on your display table, not for sale, but instead as an example of your craftsmanship.
You'll be surprised at the people who will say "can you do this part, leave out this part and make it in my high school colors, etc." This pen could be the greatest sales tool that you could bring to the booth.