I've only started reading through all the maneuvers, but I'll post a few questions about the first-level maneuvers before going to sleep.
Vampire Claw: Do you get 1 extra round (and 1 free initiation) for each 6 ranks of Disguise, or do you get 1 round per 6 ranks of Disguise (minimum 1, including the attack you make when you initiate the maneuver)? The first interpretation is supported by the second paragraph of the text and would give you 1 more attack as long as you have 6 or more ranks; the second interpretation is based on the example.
Night Dance: There's a save DC listed, but the maneuver doesn't mention a save, so it's not clear what (if anything) the save does, or what sort of save it is (Fort, Ref, or Will).
Heaven's Punishment "Star of David": If you use this maneuver to replicate a spell that doesn't normally allow a save, what kind of save is allowed? The easiest answer is probably a Will save to ignore the spell effect.
I'll post more comments and questions when I look at more maneuvers (probably later this week). I'm a fan of vampires and of a lot of your homebrew, Oslecamo, so it makes me happy to see them combined like this.