You couldn't even drill out the gun barrels? Tsk, tsk, shoddy workmanship.
I agree with Vaaish's assessment, but also your sentiments: there are some things that could be changed, but I don't think they hurt the look. As one idea, you could try plugging a couple of the tubes with antenna/gun barrel rods. Maybe you could do some variants?
Good work, though! What will you charge for them?
- H8