F(x) member Luna wowed fans with a more mature image for her photo shoot with International bnt.

For this photo shoot, Luna creatively went through three different phases of looks. In one look, Luna looked like a playful little girl in a pink pullover and black skater skirt. With her hair short she reminds us of the very innocent-looking Luna back during f(x)'s rookie days.

For a more sophisticated look, Luna rocked longer, wavy curls to match with her subtle makeup. She wore an all-white dress under a gray trench coat. She completed her minimalist look with a studded chain sling bag and killer black shoes.

And to a show a different side of Luna that we don't quite see a lot in the past, Luna goes for a darker image as she wears a see-through lace dress. Her short hair has become quite of a beautiful mess, and her make-up is very mysterious-looking all thanks to her dark lipstick.

In the interview, Luna shared what her biggest regret for 2014 was. "I prepared for a long time, but I wasn't able to show a lot to fans. But I will work harder now to show a more mature and better f(x) stage for 2015," Luna said.

As to what has changed the most since her debut, Luna said it's her thighs! "I normally like exercising, and since I spent all day dancing since before my debut, my muscles formed naturally. For a prettier body line, I watch my diet and exercise systematically, and I'm constantly working on it," the f(x) member shared.