Thanks for your detailed feedback i will answer you on each point of feedback you made.
1 : In the next update its already going to be added a new death animation with new screen as the animation for that is already done just needed to be implemented.
2: Currently the lines are quit random and some of the lines might change or removed.
3: I made the laugh like that on purpose to keep the player feel unsecure but the laugh sound it self would be changed in the future because this is placeholder.
4: I made the voice feel lifeless just like how emotionless a killer feels to add creepiness factor also because i dont have many voices to work with.
5: yes currently thats a bug and will be fixed in the future.
6: yes currently the range of her voice audio is quit large and will be tweaked and reduce later in the future.