I love the playful colours. Complimented with the rather simple shapes and block shading, the piece is very nice and uplifting. I also love the varying gradient of light; it starts at the top dark, transitions to light at the city, but goes dark again as the ocean draws nearer. This allows the buildings in the metropolis to look amazing and draws a lot of attention to the obnoxious bridge, all whilst adding a good amount of depth. Awesome work, love your style!