Question for Brian Taggert
Did you intend for Sheila to sort-of take over the lead for a large chunk of the film? If so, I think it's a nice approach, and helps in creating two strong characters you don't want to see die.
If anything, I didn't like her exit. I mean, yeah, we're assured she survived, but Deborah barely reacts to finding her, and the last time we see her, it's a mere close-up on her face, with nothing else involved.