Great shot! I find it interesting to see what's above the rail and then look below the rail through the balusters and try to match up the two sections.
It's a puzzle. The question is, Who is having the most fun? The guy with the panasonic lumix, the guy who doesn't need a camera, or the young woman who is delighted to have her picture taken by surprise by a guy wearing no underpants.
The expression on the woman's face is priceless! Hmmm, it looks like the guy in the middle is pretending to take a photo. However, I can't guess what they're seeing.