Halloween film contest help

me and my friends are entering a halloween short movie for a competition the film has to be 10 mins long including credits.
any ideas for film ???
it has to be a horror, suspense, or chiller genre
must include two of the following;
Horse
Pitchfork
Famous painting
The phrase “…..there’s only one left…”

here are the ideas me and my friend have come up with so far;

Location(s);
Pet graveyard in woods
Cemetery
Kingsnorth/Ashford church
Around park farm
Up the ****

Cast;
Hanz
Matt
Casey
Martyn
Abi

Brain storm;
Blood
Gore
Horse?
Pitchfork?
Famous painting?
The phrase “…..there’s only one left…”
Dead body(s)
One by one death
View of last person into pitch black (sitting on log (scream))
Circus
t.v

any ideas wil be much appreciated


also how a bout a horror film competition on the forum that would be fun !?!?!?