expression, noun
miraculous photo; photo where someone looks unusually attractive
Jocular term for a photo in which the subject looks far more attractive than usual, often by chance. Used in casual, often self-deprecating contexts.
この写真、奇跡の一枚って感じでしょ？
This photo feels like a miraculous shot, doesn't it?
友達が「奇跡の一枚が撮れた！」と喜んでいた。
My friend was happy, saying, 'I got a miraculous photo!'
盛れる refers to looking better in a photo than in real life, often due to technique or filters, while 奇跡の一枚 emphasizes the accidental, miraculous nature of the flattering shot.
Literally 'one miraculous sheet (photo)'. A modern colloquial coinage combining 奇跡 (miracle) and 一枚 (one sheet, often used for photos).