Girl keeps sending me her pictures even though we are not in a relationship anymore?

Our relationship ended last year due to some reason however she keeps sending me her pictures quite frequently, without me even asking for it. I'm talking about the pictures in which she is looking really cute and beautiful, well dressed such as dressed for a party or wedding. Is this attention seeking behavior/validation or does she wants to give another chance to this relationship? The reason we ended it is because of age gap between us but we kept communicating as good friends afterwards.
Girl keeps sending me her pictures even though we are not in a relationship anymore?
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