I do not think this is all that close to the brief. you say she is turneing ugly due to her strange behaviors but the brief tells us to depict a strange behviour and perhaps a relationship of some kind. i am really not sure about the head on top of the head, although you would have a description for it at end the final piece would not obvioulsy be screaming out to the audience thats a strange behaviour, if yu know what i mean.
i would adapt the idea a bit more or try some others out as i do not think this is very strong idea as far as the composition goes… although your painting style is quite nice.
EDIT- PS, reading your idea again it might make more sence and for a better painting if the ugly women was looking in a mirror and we saw what she thinks she sees, a bueatiful women. you know what i mean. add ll little deatialsm in the background of her strange behavious that have made her so twisted etc. hope i am making sence… just woke up







