This is not exactly a tasteful photograph to celebrate graduation with and I am not surprised it is being criticized in Korea:

A poster showing topless art students posing has gone viral on social media after it was uploaded on a personal online account.

Eighteen modern dance students at Chonbuk National University in Jeonju, North Jeolla Province, took the now-famous photograph to commemorate their graduation, reports said.

It is customary for seniors to take studio photographs with their friends. However, this particular photo drew controversy when it was made into a poster for a graduation recital — an official school event.

The photos show the dancers 17 female and one male ­shirtless and with their backs to the camera.

“Things are difficult in our department as a result of this poster going viral,” Kim Yoon-ah, a teaching assistant in the dance department, told The Korea Times.  [Korea Times via the Marmot’s Hole]

You can read more at the link, but the rule of thumb just about anywhere is to ask yourself is this a photograph you would want to send to grandma? With that said the one guy in this photo is probably proud to show it to everyone including grandma.