Stone Retaining Wall Plans

I need detailed plans for a stone retaining wall designed to create level areas in my yard. The wall will be between 3 to 6 feet high and should be sturdy and aesthetically pleasing. The plan would need... (Budget: min $50 USD, Jobs: 3D Design, 3D Drafting, 3D Rendering, AutoCAD, Building Architecture, Building Design, Civil Engineering, Drafting, Landscaping)