It is a nice idea. However you should probably avoid "Add Shader" and "Mix Shader" nodes unless it is necessary. They can really hinder the performance if overused.  It is better to work with "Mix Color", "Color ramp" for more control over procedural textures and "Principed BSDF"

Fantastic

Woow a spy pov, loved the concept⸜( ˙˘˙)⸝

This noisy green is a really nice nightvision effect! Makes me feel like some kind of special agent going on a mission in the middle of the night!

I like the idea, but the proportions could be improved.