Diamond Crevasse (movie version) from Macross Frontier

A woman with long blonde hair and a red dress, holding up a masquerade mask to her face. She is wearing a gold lace top underneath the dress, which has a high neckline and a bow tied at the waist. The mask she is holding is made of gold and silver glittery material, with blue gems on it. It appears to be a Venetian-style mask, common in masquerade balls or Mardi Gras celebrations. The background of the image is blurry but seems to be an indoor setting, possibly a living room or ballroom.