Lego Mosaic Generator

I'm not the first one to try this project, but damn it was pretty fun, especially getting to tweak and work the parameters to make it work with any image I want to input. To pull this off I had to learn function nodes to make some nodes scale differently with a single parameter, most importantly tweaking the normal to be mathematically sound to real-life legos. Heavily inspired by Laura Marchant's project of the same name 
Artwork Used: 
Buildings by Cobblestone Street in Town in France by Philippe Serrand 
The Powers that B by Death Grips 
Black Smoke Coming From Fire by Adrian Malec