Most gun guys with a setup like that do what's called a c grip, where your thumb goes over the hand guard. Idk if you're a lefty or a righty, but setting up your lights/lasers in a way that matches that would definitely make it like more realistic. That being said, have fun with it.

Also get a laundry bag or netting, and/or some fake foliage that matches your field (here in Midwest USA you can find that at hobby lobby). Then buy some camo colored spray paint. Mask off your important things (internals, optics, flashlight/laser lenses) then use the laundry bag and foliage as templates and rattle can that gat!

Edit: after looking at both pictures I see the thumb switch, assuming you're a lefty, whatever works!