Very impressive--I like how you gave Ayanami/Zeruel the Unit 00 armor to cover up the nudity. It looks very nice--although from the angle it is in, the limbs look just a little too humanly proportioned.
Personally, I found this less menacing than Zeruel's previous form. Besides the head, the body is humanoid, with regular proportions. It looks like a woman wearing a fancy mask . Your sketch is awesome, anyway. I like the detail you put on the eva's body.
Yeah in the second movie (I dind't watched yet) I read in wikipedia the descriptions of the angels that apperas in the movie and are really different :S and they changed the classic mask of 7 eyes of Lilith.