Bulldozing the backyard

We don't have much of a backyard.  Beyond our deck and covered patio is a very steep, grassy hill. We finally made the decision to change this unusable space into something better with stone retaining walls, plants, and a flagstone walkway and sitting area for a fire pit.  Oh, and there is going to be a small beach for the kayaks!

What I hope our landscaping will look like when it is done - a mixture of grasses and colorful flowers.