Oh the compliments. Yeah, they were kinda new for me.
I too didn't know how to just say thank you. When I still had a bunch to go, I said something like, "thank you, I'm not quite there yet." Then I used, "thank you, it was a long time in coming".. Then I went I got to goal it became, "thank you, I FEEL good" (which I still use) that kind of took it away from looks, which I am obviously still very uncomfortable discussing.
And yes, there does come a point, where people just can't help but notice AND say something about it. Apparently - you're reached that point.
Keep up the great work. You can't imagine the compliments that are in store for you. And that just barely skims the surface in the reward category.