So I wanted to report an (as of right now) undocumented exploit. The enemies are unable to enter the spawn area even after removing the barrier to start the waves. This allows the player to start the waves, stand completely still, wait for the enemies to walk close and get stuck on the invisible wall, and then kill them to end the wave. It might be a good idea to allow the enemies to enter that area, or lock the player out of it once a wave has started.
I also want to complain slightly about a bug with the shotgun. For some reason, the gun only fires one shot and then won't fire again until you hit the reload key. This makes it really impractical to play with, especially since it lists there being 6 ammo in the gun already.
Exploits/bugs out of the way, I really like the new update. The new unlockable skin for the enemies looks pretty good, being able to watch the enemies approach and climb the fence does a lot for the atmosphere as well. The new sex animation is nice (although the camera is a little weird when it plays) and the game feels good to play.
Do you have a name picked out for the protag yet? I've read over the other comments and saw a lot of people suggesting story and gameplay ideas. Just curiosity mostly. I really look forward to future updates for the project.