This digimon papercraft is the Omnimon, a Warrior Digimon whose English name is derived from "Omni", one of the "Royal Knights". The paper model is created by marcostsjr. There is another Digimon Omnimon (in cube style) papercraft at the site: Digimon – Omnimon Cube Craft Free Paper Toy.
About the paper model:
Height: 40/40 cm
Width: 29.1 / 79.4 cm
Depth: 19.4 / 19.4 cm
You can download the paper model here: Digimon - Omnimon Free Papercraft Download