bringing her forward a little and using a shallower depth of field would soften the background a bit , taking out the wrinkles in the backdrop and diminishing the shadows a bit. a soft light from the lower left would brighten her face up some too so we could see her eyes (dodging the highlights in PS would have the same effect)
great smile, very nice crop and angle of her head. soft focus (i assume added after the fact) is very nice as well. overall a very nice portrait.
P
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