Sloped Backyard Landscaping Ideas Pictures
Home and Event Styling - http://meganmorrisblog.com/2014/08/hillside-landscaping-ideas-sloped-backyard/
20 Sloped Backyard Design Ideas | http://www.designrulz.com/design/2015/05/20-sloped-backyard-design-ideas/
Fabulous way to use a slope.
10 Stunning Landscape Ideas for a Sloped Yard (1)
Not the walls, but steps similar to what I have drawn in plan view so far Check out retaining wall projects from exceptionalstone.com!
side sloped backyard landscaping - Google Search: