Alex is the new alternate standard skin introduced in 1.8. While Steve looks more male (and has a male name), Alex looks more female, but could also be male (has a gender neutral name).
The second one is Alex prepared for battle (sword by superteo1, bow and arrow by brickyboy99).
How to Print?
1.Click on the papercraft design image.
2.Make sure it has not been resized by your browser (you might need to click the image again).
3.Print using your browser's Print function.
