Any deer with a bow, that you are happy with, is a trophy.
Dont worry about you shooting all the deer in your dads blind. Believe me, there are plenty more there. And if you took a small buck, you saved him the big boy that will be running those grounds when the rut sets in.
No need to worry about anything. My favorite blind usually produces several quallity deer each year. I shot some, my brother, and friends will shot some from it as well.