That looks like quite a nice running braid to me, especially for your first time!
I know how you feel about pulling her mane, I have an arabian that I bought with a mane down to his shoulders. When I first bought him, I wouldn't pull it even though we were showing hunters. But I finally gave in, and while sometimes I miss it, I love how he looks with traditional button braids. Not to mention his mane was so thick we could barely get half of it in the running braid =P
But what a cute horse and congrats on your placings, and best of luck for future shows and braids!
~Kait & Mark~