Shower Waterproofing

Hello,

I'm new to the forum, and I'm working on my first shower.

As you can see, I have cement board on the walls and a RSS Tile Ready Shower Pan with a Flo FX drain.

Since this is my first shower job, I'm not feeling super confident and I was wondering since I will be applying Red Guard on the walls, can I also apply it on the shower pan? I understand the pan is already waterproof, but will it cause any harm? Like trapping moisture or something like that?

So, my question is: Is it safe to apply two coats of Read Guard on walls and pan?

Also, this is the entire shower, I would appreciate an extra pair of eyes to check if everything is looking good (as far as you can see).

Thank you!