Congratulations, MrsOwen3!
I remember when you were talking about submitting the proposal. You were really enthusiastic about their values as a business. It is probably in your best interests to have gotten only 1/4 of the job. Much easier to be successful and make a good impression for future work. And a good opportunity to get more of a feel for them so you can wow them even more when they give you a second job. Congrats.
Thanks to everyone for the good wishes. I'm excited!