I love all the early iterations concept artists go through. Even when I'm working on random digi-art / renders I have a hard time picking lighting / color, etc. It's always a curious moment when you have to make that final decision to finish the thing. Just have to go for it (or keep multiple copies :P). It probably also helps when you have a team of people with input too.
The gun design here reminds me of the sniper in the recently released (and Valorant/CS:GO inspired) "Spectre: Divide" -- it has the triple holo-sight set up.
The design here makes Chamber look like a young Yakuza member, hah.