an intersting isea - is a fake face not a face? however, with the focus on the candles rathre than the nun or cross, it is very distracting. well exposed, but the focus really needs to be improved, or the candles placed more prominently in the compostion, to lessen the importance of the nun figure.
You're probably getting killed for this, but I think it's a nice out of the box approach. She looks as though her face has been erased. And I like the composition. 7
The mask makes it faceless, but it seems the lights are the more prominent features of the shot while the figure seems to fade into the background. This could be what you were intending, of course.