WOW - it is really hard to believe that you are new to this!
You have a genuine and unique talent at capturing striking images - I just happened to stumble across this Post. To be honest there is nothing to C&C:
Shot 1: Separation = Spot-On. Lighting = Spot-on. Colour-Rendition=Perfect. Framing='subjective'
Shot 2: Separation = Spot-On. Lighting = Spot-on. Colour-Rendition=Perfect. Framing='subjective'
Shot 3: Separation = Spot-On. Lighting = Spot-on. Colour-Rendition=Perfect. Framing='subjective'
(You just need to find a more sophisticated way to 'pin' the gun in position) GREAT shadow-effect!

