Soft fluid "S" line.plant vines or small shrubs to cover the wall close up.you could chech in my some pics.

concrete is a universal product you can form it to any shape or size. i worked 30 years doing concrete bridges. what you have in the picture is poured reinforced concrete, the concrete is poured into a form that was made from bender board, its a type of plywood.

when poured you will have a solid piece of concrete that will last forever the only thing is .with setting of forms ,placement of rebar and drains prep of base material.pouring concrete befor it sets you have to have a fair size crew not a job for a DIY project. block is good for small projects.

I just want to say that I love what you are doing. The layout is inspired and I love the concrete. Are you at liberty to tell me the particular concrete mix you are using for the walls.. I know its reinforced, but what type of cement, sand do you use and in what proportion and what is your base?. I am learning to use concrete, but its taking time. Do you know a good book?

I have some projects in my rear yard, including retaining walls like these (although straight, not curved) and a sunken courtyard. I would *really* like to know how to specify a smooth concrete wall like this for both. Any advice on how to clearly specify that effect - including what type of concrete and how it should be formed, smoothed, or treated - is greatly appreciated. Thank you. (Brooklyn , NY)