Isn’t she lovely? A beautiful angel singing above a home or little church, perhaps. It is not so easy to make it out. A dark wintry background, just sets her off as she sing a Christmas song for those who are arriving. They are not even aware of her presence but she sing praises to the Lord.
It could even be a manger scene, it does appear that some have either been seated of kneeling, so it probably is a church. I wonder what the choir is singing. It may be the same carol.