That's funny your clippers died! I've always been told to do both sides as even as you can, so you don't end up with a half shaved horse. =]
Once, while giving a body clip on a Fjord, I shaved LACEY [her name] along her side and then out went the clippers. Luckily she was a lesson pony, so she didn't have to go get embarrassed at a show, but I still felt kinda bad.
And about your clipping... he looks so funny because his legs are really hairy, but you did great. He's REALLY cute. Good job on the heart, I had a heck of a time putting on R on my horse's butt, I can't imagine a heart. =]