Just my 2 cent but this is kinda flag and generic looking, I know its harsh sorry but its a IC and better to be honest and harsh the sugar coated fluff.
What I think needs to be changed.
The tan color is amazing that is about the only amazing thing about this keyset.
Once again just my opinion but think the mods need to be another color. That way they break up the set a bit perhaps
https://www.colorhexa.com/4b5320.png which is Simple OD Green.
Then instead of using white legends go black. There nothing tactical about white.
I am also going to suggest if you want to keep the sand tones then go with varying sand colors.
I am assuming you got your inspiration from firearms that have been done in Tan colors. Those work because of the varying textures, this just falls flat.
Hope you don't take my feedback as offensive. I am just being honest with out a bunch of sugar coating.