Right light is the light that was done, left light is a regular factory tinted light.
Not really much difference tbh, and this stuff is an absolute bitch to apply. You eventually get the hang of it, but the video on the website where they are applying it to the front lights of a VXR make it look easy, IT IS NOT. (unless you're an octopus)
The rear lights have a dramatic curve and close up on this light you could see tonnes of wrinkles. On the attempt at doing the other light I eventually gave up as there was more wrinkles in it than a 90 year old grannies face. So I pulled both of them off. Would have looked alright I guess if I'd have managed to do them properly.
This stuff would probably work best on front lights where there's not so much of a dramatic curve I reckon! Quite annoyed that I wasted £20 but at least I've learned from it!