This mario papercraft is the Princess Peach, created by qooplo. Princess Peach Toadstool is a character in Nintendo's Mario series. She is the Princess of the fictional Mushroom Kingdom and often plays the damsel in distress role within the series and is the lead female. In 2007, Princess Peach landed on Forbes magazine's Wealthiest Fictional People list. She is ranked 10th in Electronic Gaming Monthly's Top Ten Video Game Politicians list.
There is also a Super Princess Peach paper toy at the site: Super Princess Peach
You can download this mario paper craft from here: Mario Papercraft - Princess Peach Free Paper Toy Download