My face has a proud smile because of you.
I don't know if anyone has ever told you this before, but I think you are pretty great.
Great things come from great people.
I'm thinking of a word for you that stats with "C" and ends in "ongratulations."
I love your accomplishments almost as much as I love the person who did them.
Thanks for giving me a good reason to say congratulations!
You surprised me a little bit. I knew you were capable, but I didn't expect this level of accomplishment!
I am excited for you, and I am wishing you the best.
Just when I thought you couldn't impress me anymore, you did.
I am proud of you. You have accomplished a lot. I look forward to seeing even more blessings come to you in the future.