You have worked hard and built the 'bones' of your garden but now it needs dressing. For me there aren't enough plants. I totally agree with the pyracantha/clematis idea at the bottom of the garden but I don't agree with more pots. Pots are actually quite labour intensive in the summer when they need watering regularly even if it rains. Hence I think shrubs/plants should be planted in the gravel which will still suppress the weeds and help retain moisture in the summer. I love the idea of planting only white flowers. They are visible longest in the twilight. Vita Sackville-West planted her famous white and silver garden in Sissinghurst Castle. I firmly believe that fences should be invisible and disappear. Lest the garden looks like it is in a box. They should not be painted a bright eye-catching colour but instead camouflaged with a drapery of ever changing foliage. Climbers can be trained to grow along the fences. Either on trellis the same colour as the fence, on wires or on each other as suggested before. You could even have a beautiful fan or espalier trained apple tree growing against whichever fence in the sunniest spot. If you can lose the fences your garden will appear larger because there will be no boundaries. Lastly as final touches Ithink the eye should be drawn to a feature in the bottom right-hand corner such as a statue or beautiful elegant tree such as a silver birch. Also you should consider garden lighting which will add another dimension and give you an outdoor living area in the summer. Up-lighting is particularly effective and white fairy lights add a lovely twinkle.

http://www.mireillesampson.com/al-fresco-living/ We have a small corner garden with 12' brick walls laid to grass originally but it became a mud-pit thanks to our new puppy! See the link above that explains what we did with the garden.

Yes , from this point you have a great view over the hills of the "Bergisches Land"near Cologne .

Thank you very much for the positive feedback. If you would like any additional information on the project please feel free to contact us with any questions.