What a hard expression to convey! Yet, she seems to be longingly looking back (at least away from the camera), both distressed and disappointed at the same time. And, over it all the congealing salt crystals form. Going. Going. and just before Gone.
This is wonderful! I love the expression and the light on her face... as she realizes and succumbs to her fate. The texture of the salt overlay is like brush strokes and gives this a feeling of being a painting.