I think the renders are pretty good tbh but I do have one suggestion. The words Battle Hardened are very hard for me to read. I also feel that they are blocking the most interesting part of your image. I would bring the words down and enlarge the. Then maybe change the colour to something that would contrast and be more visible … like red/orange (the colour of the reflection on the trigger) or even just add a red outline and keep the silver… I think that the gun model will be a draw for your game and that you don’t want to cover it…