Steampunk (-ish) Machine Gun

First halfway decent model! Rawr! “Busbus!”, I hear you ask. “What is this crudely made abomination you’ve brought before us?” This dear viewers is a, as the title suggests, steampunk machine gun based off the Maxim Gun and its derivatives. As is pretty obvious I’m relatively new to Blender. I’ve been using it off and on for a few months now, actually, but only recently decided to get serious about 3-D modeling with it. Tips and constructive criticism are always welcome. Have a lovely day.