id say to use some better stocks.
i checked out one of my psds from a gun i made for the memphis design your own gun event.
looks pretty bad if you ask me.
but anyways, it was my first time trying to make a gun design :p
i used one stock. duplicated and put the parts on that i liked. set those layers to soft light, hard light and or turned down the opacity and stuff.
yea. it looks bad, i know. thats why i stuck to signature making :p
some parts of your gun are ... bright (kinda) and then just goes really dark.
see the parts i circled? only parts i like :p
i like the design, and you can also see the details that make the gun unique.
im just giving advice on how i like it, but no need to follow them.