Early videos and screenshots of games often show things that never make it into the final version. The human creature was cancelled for several reasons, and the developers decided to use animals instead.
Unfortunately the closest thing you can have to a human creature is the Ogre, but he has a lot of glitches and doesn't always work right. You can change the colour of your temple with this mod: http://www.bwfiles.com/files/file.php?id=996