How would i mirror multiple frames

So i’m making a drawing system for my game and i want to turn my drawing into some sort of 3D and my system makes 2 surface guis on a part, but what i’m trying to do is to mirror one of the surface gui so it would look like the other side of the other surfacegui. i managed to make what i want in studio but i don’t figure out how i would make this in a script in-game, here is a video of what i want to make :

robloxapp-20231023-1054077.wmv (153.8 KB)

any help will be greatly appreciated