I like the contrasting surfaces but not gravel because of Charlie. I also like the trelliswork on the right-hand wall. Chairs with cushions around brazier in small urban garden, clipped box balls, Mespilus germanica
Use rectangles to create a zig-zag plot: A series of rectangular lawns or any other ground cover or paving of your choosing - pebbles, decking - are laid at right angles to each other. They traverse the garden, giving strong direction. By Diarmuid Gavin.