Yep definitely creepy vibe locked in and a sneaky killer giving you the run about. I picked up the green and seemed to run faster.
Ultimately a little more instruction or narration could have helped - perhaps an internal monologue or some instructional (could be terrifying) pop up mini animations or pictures. This would fill some blanks for the place holders squares and things.
It controls felt smooth and reactive, finally it seems the killer gravitates to the player it would be nice if you could lose him and he can make seeking paths to find you from last know or noises made perhaps.