hello,
this is an interesting, but already very well known and often used concept. i personally find it creepier, for example, when i don't see the dolls walking. during my short test, however, i saw movements of dolls that were not completely in my field of vision. they also pushed other dolls. You would need something to make you stand out, maybe a doll that can only walk on top of the shelves or something that makes you stand out. But the basic principle is already quite solid, just keep going and have fun with it, then it can become something great.