The tools I used were the rectangle tool, pen tool, perspective grid tool, perspective selection tool, and a couple of others.The requirements were to at least have 7 buildings, 2 gradients, 3 advertisements, windows, and doors.I used a linear gradient for the windows.I used a radial gradient for the sun and background.I like how the sunset turned out, it made the picture come to life.I wish I could have added more buildings and more details.