There is instances where a womans face is awrah, but she has to be exceptionally beautiful. To deem a womans face as awrah she needs to seek the advice.

Again, I dont deem the face as awrah for if it were it would have to be covered during prayer, which is not permissable.

I commend those who choose to cover their faces for Allah and may they be rewarded but in no way do I feel it mandatory and it is classified as Sunna.

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"Diplomacy is the art of saying 'Nice doggie' until you can find a rock - Will Rogers"