It's not too bad, you just need more patience and pay more attention to detail. In the second pic you have the perfect pose, but you were out of position. The bull looks very relaxed in the second pic and that is what you're after, a relaxed, yet alert pose. If you were just behind his shoulder and dropped to your knees, you would have been in the perfect position to take the photo.
I've also found that using a zoom lense and standing further away just make the animal looking for balanced.
On a side note it is near impossible to take a good free standing photo of a structurally unsound animal, the structurally sound one tend to set themselves up nicely.