The first one is GREAT! Nice composition. Shows action.
Depends what you were trying to take a picture of in #2 and #3. They both seem a bit crowded. Both would have benefited from a different angle; perhaps a 50/50 split screen type thing of undead on one side, pirates doing battle against it on the other; or from the front so that you could see the pirates rather than them looking at the undead.
I don't see anything wrong with the angle in the sailing shot, but the composition is a bit bland. Most good sea faring shots have pretty scenery (sky, other ships, other ships attacking, you attacking other ships, etc.).
Just like photography.... take lots of screenshots, throw out the ones that don't suit your fancy.
Cheers!