It was all done pixel by pixel, however some layers (lighting/reflections) have different opacity levels.
I hope you enjoy it, and thank you to everyone who has uploaded a tag for this wall; it has made my job a lot easier.
Special thanks to all those who took the time to create a tag for the wall. Below are the artists of each tag, in no particular order.
Progress Time: 1.5 months
Program: Photoshop 7