If you'd like to enlarge and get a view of what wool was used below is a photo just taken with a flash. If you tap on the photo you can see the wool better. OMG, put on your sunglasses ~ this is not what the rug looks like in person. Guess that is why only the above dark photo was saved.
Anyway, this is a design called Debbie's Horse and is a free pattern in Barb Carroll's Book American Folk Art Rug Hooking. It may be out of print but you could always check with Amazon if it isn't already on your book shelf. Hey, don't all rug hookers have every book by Barb Carroll?