We made a feature of the garden’s slope, by designing three terraced levels of planting, with an open flight of steps running through it to the garden’s upper section. Description from juliantatlock.com. I searched for this on bing.com/images
The combination of rendered walls, wide steps, warm stone copings and nice planting is very nice. A white render and darker brown or grey stone would look good in the cottage - a more refined version of what you currently have.