Ok, Theory time, the main ending left me with many many questions, I have analyzed a few things and here are the working theories for how any of that happened, let me know if you have any pieces of evidence I missed or any theories of your own you'd like to share
Without further ado,
SPOILER WARNINGS FOR THE ENDING AND CHARACTER DETAILS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Theory 1: Eve didn't actually shoot morgan in the head and is an unreliable narrator type character who imagined it for one reason or another, Possible, but highly unlikely
Theory 2: Morgan is a vampire, but not in the traditional sense, Morgan is shown not having many qualms about murder, cannibalism, along with being VERY pale, however she was dead for a period of time, and due to her being able to go outside during the day and see herself in the reflection, this theory is unlikely, but possible if we change how vampires are traditionally depicted
(Theory 2.5: she might be human/mortal by day, but can come back by night)
Theory 3: similar to theory 2, but Morgan, for one reason or another, is undead/not technically alive, given she can be killed, but not permanently, it is possible she might be something like a zombie, demon, ghost, revenant, there are many possibilities, again, her lack of issue with murder, cannibalism, and paleness can help support this. Given what I do know, this theory seems to be quite likely
Theory 4: Morgan is an immortal/semi-immortal being, she can die, just not forever, the only evidence supporting that she is immortal is that she wasn't dead. less likely as Theory 2 and 3, but possible.
Theory 5: That's not morgan. It is possible it might be a mimiclike creature that feeds on meat, maybe it was always a mimiclike creature, maybe one found morgans corpse, there is next to no supporting evidence for this. Probably flat out wrong.
that's about it, Very good game!