side sloped backyard landscaping - Google Search:
10 Stunning Landscape Ideas for a Sloped Yard (1)
Deck built onto sloped yard, railings
Home and Event Styling - http://meganmorrisblog.com/2014/08/hillside-landscaping-ideas-sloped-backyard/
Not the walls, but steps similar to what I have drawn in plan view so far Check out retaining wall projects from exceptionalstone.com!
Great success with planting a slope has to do with the types of plants you use. Here are some great tips, ideas and photos. For low maintenance, be sure to use drought tolerant plants!
Great Idea for a sloping yard like mine..I could see this leading to a fire pit area right below it.
20 Sloped Backyard Design Ideas http://www.designrulz.com/design/2015/05/20-sloped-backyard-design-ideas/