Ah, Yeah now I see it
Can't believe I didn't at first
Tails Doll is not amused~
Splendy is Slendy, Slendy is Splendy, Jack is Hannibal Lecter, Jeff is Freddy Krueger, Ben is Scream, and the guy at the very end is Raiden from Mortal Kombat.
That's all I could get, but this art is great. Made me laugh XD.