In horror art, eyeballs always work.
I like your use of a single color...it's effective. Many people would consider a single color very limited but you made it work. My only complaint is the composition is a bit lopsided, but for horror movie packaging or posters this would definitely do.
If it hadn't been for this piece, I'd have no idea that Dario Argento existed. Not sure if his films are my cup of tea because I haven't seen any yet. Now I have a reason to. Awesome.