This is very cool! Some powerful iconic imagery. Good drawing too although a couple of minor issues. 1st, I hadn't realized you were left handed. Me too The natural arc of your arm and hand's movement also shows in the gun's barrel and ammo cylinder. Also the note is far too small... consider the size of the lip prints compared to the trigger. You might also wish to consider larger thorns on the rose although that's more a matter of personal taste. Still, it's a really good drawing, particularly how your shading captures the metallic texture of the gun. There's definitely enough really good things going on that you might wish to re-visit this some reference to work from and maybe a straight edge for laying out the gun. It's a good sketch with the potential to be a GREAT piece. Well done!

A still life! That's very different from the usual stuff we get on this site, definitely. Well drawn too. Cool stuff!