Black widow II enhance ultimate "sex sells" version.
And to be honest a stunning one !
I also think her facial expression is very close to Black Cat.
and as Black Cat her outfit is very well designed. i like the repeated V scheme on her gloves and boots :
Maybe that open V on her chest might be a nice addition (101% sexyness or not ^^) or maybe too much and if it goes too high to her neck maybe a seam for the change of head would be to visible, i don't know.
Chest outfit close or V open ?
I'll follow the full paint reveal and hope they will improve again her head since Black Cat. I know lot of BC owners don't like the spare head that much.
Finally the base seem perfect.