I second the Holy Ship comment. Looks great. Super glad youre providing layers so we can have people move on them and be behind the sails, etc. Cant wait!
Edit: An scaled down, animated 48x48 version of the ship, would be amazing. By animated mean 3 (or whatever) frames of animation in, at minimum, the cardinal directions. The frames are typically sails moving, and some water ripples that look like waves when overlayed on a water tile.
Edit: I guess I should mentioned why (even though its obvious) - so we can use the ship for an overworld map, etc.