This is subtle and very lovely. I like the intimacy of the woman's arm resting on the shoulder of the man behind the couple (photographer, perhaps?). And I'm wondering what she is holding (the white sheet - maybe some sort of light reflector?). The detailing of the archway and sculpted heads is also intriguing. A lot going on in this deceptively quiet shot!
A place I would like to see someday. Tell me Alistair, is it all it is hyped up to be, Paris? It looks very romantic in this photo, after all, it is a wedding!
