For me, her expression was enough, without the tape....the tape takes this back to mainstream. The tears, the make-up, the eyes, would've been enough to convey the point.
Interesting idea. Lighting feels rather uneven - strongest on her cheek and neck - perhaps needs to be positioned differently and slightly diffused, though harsh does fit with content.
Tape on the mouth overdoes this message. For me, the work (which I assume is makeup) under the eyes and the sad expression on the model would have done it. Other than that, this looks very well done to me with great lighting (maybe a little more focus on the eyes, but that is really an option for you, not a criticism.)
I understand this interpretation but it's not one that I feel relevant.The theme is 'silence' not 'something silent (audible of felt). In that context this image evokes a feeling of despair and anger rather than silence.