My photo at the exhibition in the Botanic garden

For 11 years in a row now, my photography club has opened a new photo exhibition in the Botanic garden in the beginning of Summer. I find it always a bit challenging to select a photo for the exhibition. This time the theme is "Shadows" and I chose this picture I took in Spain during Easter. This elderly couple were taking a walk at the beach promenade in La Pineda, and the shadow that makes the frame around them comes from a lamp post. The shape is "duplicated" in the pine trees across the promenade. 
P.S. My reflection is visible in the blue sky, but I didn't notice it until now ;)