SteamPunk Gun

I made this using a 'Nite-Finder' model Nerf gun. I used black spray paint and acrylic paint for the paint job. The phial is filled with food colouring and the disk with the roman numerals is off the front of a pocket watch. The 'scopes' are just keyrings attached to bent around safety pins. I took this photo as to give a better view of the parts of the gun and of the 'scopes' on top.
I'd like to know how to improve, so criticism is very welcome.