This papercraft is Reepicheep, a Talking Mouse of Narnia, and was the leader of all the mice there, based on The Chronicles of Narnia series, the paper model created by Fox Japan. His second-in-command was Peepiceek. There are also Aslan and Asabirakimaru at the site.
Reepicheep was a valiant and chivalrous talking mouse who lived before and during the reign of Caspian X, and was completely loyal and faithful to Aslan. He took part in the Narnian Revolution, nearly getting killed in the process, and also sailed with Caspian on the Dawn Treader to the End of the World.
He was about "two feet tall", weighed about "seven pounds", with dark fur that was almost black, and looked, according to Lucy, "so cute!", a description he didn't appreciate much. He always wore a short belt around his middle, with a rapier at his side, and a thin band of gold around his head with a long crimson feather sticking out of it, possibly as a sign of his leadership.
You can download the paper model template here: The Chronicles of Narnia - Reepicheep Free Papercraft Download [Instruction]