Okay, to be honest, the title is kinda stupid. The only reason I even thought of the Emerald city was because of the cool colour I got when I added a lighting effect. So sue me (oh wait, no, don't!)Here's the original, another one that I drew,
I added some colour, inverted it, added a neon glow and some lighting effects, and then thinking of the Emerald City, used the text tool to add the words of "Follow the Yellow Brick Road" on top of the picture, set at a low transparency to get the following,
