I originally made this as just a piece of artwork, but I felt like it needed a bit of ambience. So, I made the antenna light on the skyscraper flash green and I made the street lamps flicker too. Finally, I added a small amount of background music from the scratch library. Usually scratch music is disgustingly annoying, but "mystery" adds a nice aura and vibe, you kinda feel like Batman should appear or something. PS: don't hit the letter "t" then type "batman" exactly.
This is me taking a stab at drawing a backdrop in vector (or any backdrop!), and I've got to say, this is probably my best drawing ever. I'm really happy with how this turned out. The lamps were really fun to play around with, and I really like the glow from the moon. Feel free to use this backdrop in a game, just be sure to give credit.