For rotating the camera you could perhaps have it switch between four possible angles, and to change angle you can press Q/E on keyboard and LB/RB on controller. To make it a bit less disorienting you could lerp the camera to smoothly rotate rather than immediately jump to the new angle. And you could try setting the timescale to zero while the camera is rotating so nothing can move and kill the player while they're adjusting their view.
Yeah visible damage on enemies is great, much more punchy and visually impressive than a health bar. It was a great reuse of an already implemented and familiar mechanics. And thanks for the kind words lol.