Large-leafed hostas sit at the feet of an arched-top arbor that frames the gate. Lovely purple clematis climbs over the arch. A very pretty sight and apparently entrance to the rest of the garden or the backyard.
Love the idea of growing herbs/plants between stepping stones as the ground landscaping. If you have to retain a tree growing out of the middle of your patio - make a feature of it as they've done here by edging it with box topiary.