Experience Tumblr like never before
Let us suppose that the "average" horse would have equal proportions of all these parts. The degree to which each part in this poll deviates from the "average" size (20% of total) will determine how large or small that part of our horse will be (i.e a horse with only 10% in Legs will have legs half the size of the average horse).
I will draw a picture of the horse we make!