Circles within circles

I have seen an advert on tv recently featuring ripples under a bridge with the bridge and reflection making a circle so I got Mrs DD to drop a pebble in to create this, think it should have been a bit bigger.
We have had a lovely day out went to Swafham and a wander around the market and lunch. Then to NT Oxburgh Hall where I took the picture took the guided garden tour and a cream tea.