This papercraft is Rainbow Dash, a female Pegasus pony and one of the main characters in the My Little Pony Friendship is Magic anime, the paper model is created by Hekatex. The size of finished model is about 122 (H) x 80 (W) x 156 (D) mm.
There are other My Little Pony Rainbow Dash paper crafts at the site:
My Little Pony Papercraft – Rainbow Dash
My Little Pony – Rainbow Dash Papercraft v2
My Little Pony – Rainbow Dash free paper toy download
My Little Pony Friendship is Magic – Rainbow Dash Free Papercraft Download
My Little Pony - Rainbow Dash 3rd Version Papercraft
You can download the paper model template here: My Little Pony - Rainbow Dash Ver.4 Free Papercraft Download