That's... interesting, to say the least. Since I'm assuming you used paint, it's not <I>that</I> bad, though you could use a better font. And colour. And a background. And better formatting. And maybe make the back of type transparent instead of white.
About the content, I guess it's okay. For some reason it moves faster than a horse and has intelligence. You could put something about the natural attacks and submissive mind I'm assuming it has. You know what? Why don't you just have a window with the horse card open and copy from that, adjusting as necessary?
Being myself, I would have the boar as a more bulky horse. I'd have a speed of 8", and armour as 1d6+2. The attacks would be the same as the horse, with kick and bite at 1d6 damage for a UR of two, with the addition of a charge attack. It has a UR of 3 to send the object flying 2d6".