Pin-up Girl Model

Notable contemporary pin-up artists include Elias Chatzoudis, Armando Huerta, and Chuck Bauman. Another is popular Pin-Up Artist Olivia De Berardinis who is most famous for her Pin-Up Art of Bettie Page and her pieces in the earlier editions of Playboy.
Other kinds of pin-ups
In comic books, a pin-up is simply a full-page piece of artwork, most often without dialogue, that showcases a character, group of characters, or significant event, published within an issue, rather than made available by itself as a poster.