Your analysis is quite close to mine. Her expression is expectant and hopeful not disillusioned. She is alone, not lonely. The birds in the background are a stark contrast to her solitary reality. Their wings maybe be clipped but they have each other. The loss becomes bearable. It may not even seem like a loss. She may be intact but is still alone. Whose reality is better? The birds with the clipped wings or her solitude in spite of her perfection?