Despite I have been playing this game for about 3 weeks, I've noticed TODAY that there is a strong difference color between the sheep in the map and its icon image. I don't know if should consider this a mistake, maybe it was done deliberately (or not).

The main difference is the color of the head. While the head of the sheep in the icon is black, the head of the one released in the map is brown. Now I got confused whether its skin is actually black or brown...

http://i.imgur.com/3Yb4t.jpg

Thanks for pointing this out, I've informed the art team.