I did say that the eye technique wasn't Tsukuyomi do to the eye Sasuke uses, Each Mangekyou we have seen weilds different techniques so Sasuke probably as up to three brand new techniques.
The Amaterasu that Itachi planted was (as far as we know) a one shot to take out Madara, which failed.
As for the cloaks I am sure they are a different style, they almost look like Taka's previous cloaks had been dyed, We'll have to get into the Akatsuki wardrobe to settle that one
(and since when was Karin Akatsuki level? or do they let any fodder in now?)
Edit: All the previous Akatsuki's die shortly after taking of the cloaks so lets hope he keeps his cloths on. Its an Akatsuki tradition. They don't like getting the blood stains off.