Just run and enjoy!
I remixed the "Woods" backdrop to implement the moving background: 1. For one half of the background, I flipped the sprite horizontally for a smooth transition (and deleted the moon) 2. I then used separate sprites for the foreground trees and moved them to a separate layer to allow the smaller unicorns to be behind the front trees. The front-most unicorn changes size, position and layers to make it appear that it weaving between the trees.