#1 you cut off the barrel and grip. Good lighting and setup #2 is underexposed and not super interesting
What I meant was the light on the barrel Is cut off. Even though it's ever so slightly there is a ton of dead white space on the left and cut off pieces of your subject
Take the picture again and don't cut off pieces of the subject. I like the angle and lighting, the composition is lacking
No, they aren't that bad. For someone completely green that are pretty fair.
What part of the pistol were you trying to emphasize? The manufacturer's logo? The light manufacturer's logo? The whole pistol? Decide WHAT you want to show and they go about finding the way to show it to it's best. Use the light, the depth of field, the composition. Use everything to define the part that you want to emphasize.
When shooting objects you treat them like people. A photo of a girl with half her head cut off would not be appealing would it? In the same way a pistol with half of a grip isn't either. Try to arrange the shots the whole pistol is in frame. By shifting the frame, it eliminates all the dead space (all the unproportional white in this case) and gets more of the subject in view. Even the slightest knick is distracting (as in the tip of the light in this case)
#2...Well to me the background is to dark, I tend to analyze it more then i notice the wrench..just my opinion