I really like this MOC. First of all the walls and windows are well done, with a nice white background and some yellow accenting.
The photography is okay. It's a little off-center for the first one, and they all could be a little brighter.
I like the crossed swords, although they seem to be uneven in some of the pictures. The party string with the different colors [and the monkey] really add to the party atmosphere.
The various actions going on between Minifigs is great. From the Conga line, pinata, generals discussing to the punch-spiking and dancing pirates [I see a crack on the torso!
], it really does create the idea of a party. I think there could be a larger pile of things from the pinata, it seems a little empty. If you could tile the floor with some nice colors, I think it could add even more to the party atmosphere. It might not and be too much, but have you tried?
I think a key part that's missing is some lighting from the ceiling, like chandeliers. The punch and punch bowl was excellently done, I really like the gem there, it makes it seem very fancy.
I like the fireworks at the top as well, although I'm not sure what's going on with the bit of orange that's in the sky. I also think I see some TNT in there. Hilarious.
I think there could be some tiling up top as well, but it definitely needs some yellow like the rest of the walls have. The string with all the flags from different alliances is a really nice touch.
The 4+ Pirate fig was a nice touch, another bit of humor there.
Overall a really nice lively and humorous entry, but with a serious chance to win.