Very good.
As others have said it could be doing with being sped-up, and getting rid of the people; I don't mind people in the opening titles, but they shouldnt be so "clear" if you know what I mean. Also not a fan of the "16 housemates" and other such text written in the opening titles; the titles should be self-explanatory, plus it removes the possibility of twists later on.
On to the good things; the ink blots falling is nice, as the swilling ink in the background of shots. This, sped up, could look very cool indeed. Also, I like how it's very crisp and clean, black and white.
In summary, the same kind of idea, only sped up and with no "obvious" text would make it excellent.
Well done
