I couldn't understand why there was a need to kill that girl. I have not read the comics but does it have this?
Ending was perfect and i felt the finale was trimmed off with most of incidents occurring in No time. The people in the camp just obey the orders of some stranger who was in few days back, I was WTF.
In the comic, apart from a few people that leave beforehand, everyone except Rick and Carl die. The girl and Lori actually have it the worst. The governor shoots Lori through the baby in her arms.
I think the girl may be alive in the TV show. Tyrese might have saved her. Can't say for sure though.