It's getting there! I like that there are plenty of offspring pics, but you definitely need professional confirmation shots of the Stud, too. Something as simple as changing the angle of the shot can do wonders for highlighting his strengths and camoflaging weaknesses. For instance, his headshot with the silver halter: my eye initially settles on his somewhat coarse throatlatch, because it is overly emphasized in that particular picture - angling him toward the camera even a few degrees would seriously improve his overal look. He's an attractive guy, so make sure his marketing photos show it! Love the orange in the riding pic, that was a great color choice on him.
And I'll echo the above posters - get a proper domain name! I have a hard time taking freebies seriously in this day and age - it just doesn't look like a "real" business. The domain name itself will only run you $15/year, but I highly recommend you lock it in for at least 5 years.