Finally a reeeeeeally bloody entry. It's so sadistic, evil and bloody. It's perfect for the contest! I i'm very fond of the bloody-ness (thats not a real word is it?) of your MOC.
The bloody trails in the water and on the beach is very.. ehm.. bloody

Nice!
Your stew is so cruel and I wonder what it tastes like
Improvements
Your islander in the boat is sailing the wrong way if he tries to escape. You'll have your back to the front of a boat when you row.
I think your sails are fine, only thing is, that I would expect piratesails to be more dirty. They are almost clinical. So if you could make them more brown or somehow more wasted.
Maybe you could put the bloodtrail in thw water into you SNOT-foundation. At the moment it's lying ontop of the water. Thats a pit wierd I think.
Somehow I think that adding a ship like that separates your MOC in two. So if you have time (which it seems you don't

) you should try to integrate the ship more in your MOC.
Good luck in the contest.