[Liberated]

Shape:
Nice i like it, seems like a good graal gun, good size.
Colors:
Photoshop says 97 colors?! Way too many. You need 10 at most, you use loads of colors with hardly any contrast in between them.
shading: Like the other people said, lacks defined shapes in the shading, aswell as contrast, metal is shiny.
example:
I took your gun, didn't do anything about the shape,
took my own colors and tried to shade it,
colors used: 7, including black.