On further examination I gotta agree - it's definitely legible but you may want to make the text stand out a bit more. And if you plan to post it in tack shops, etc., possibly make it more immediately obvious that it's for something horsey. I don't see any typos as long as you spelled your name correctly!
See why I don't generally critique? I'm wishy-washy!

Thank you MadMare!!!
"So now boss man, here's my 2 weeks,
I'll make it short and sweet!" --Sugarland