Thank you ladies - I really had fun with this one. The bottom tier is 6" x 18" so I made three 1/4 square triangles in each color set and then sewed the opposites sets together to make each of the three squares. I just rotated the center square for fun. I then appliqued the yellow circles.
The skyline is applique. I found a silhouette via a google search and traced it. The third tier (circles) is just really coo fabric that set the entire color scheme.