This pokemon papercraft is Vaporeon (Showers), a Water-type Pokémon, based on the anime / game Pokemon, the paper model was created by javierini. Vaporeon evolves from Eevee when exposed to a Water Stone.
It is one of Eevee's final forms, the others being Jolteon, Flareon, Espeon, Umbreon, Leafeon, Glaceon and Sylveon. There is also a mini version at Papercraft Square: Pokemon - Mini Vaporeon Free Papercraft, and also another Vaporeon paper model on the site: Pokemon - Vaporeon Free Papercraft Ver.1.
About this pokemon paper model: