Paulina Porizkova is acknowledging turning 60 with some candid thoughts on the realities of aging.

The Czech supermodel and author, who celebrated her birthday April 9, shared a pair of makeup- and filter-free photos on Instagram Monday.

In the first image, she appeared to be soaking up the sun in a bikini, posing playfully in a beach cabana. The second, however, showed her standing in front of a bathroom mirror in her underwear beneath harsh overhead light.

“This is me. Vacation, pretty light, posing for a shot,” Porizkova wrote in the accompanying caption. “This is also me. Home, not great light, not posing.”

Her body, she said, was a reflection of “60 years of doing the right things followed by doing the wrong things and over again and again,” adding, “It’s 60 years of learning of what works and what doesn’t. And just as I think I’ve figured it out, everything changes and I have to start again.”