The Blue Angel
I hope Marlene Dietrich will forgive me for comparison…
Actually, it’s not about the visual similarity 🙂
It’s rather about the concept of the “blue angel” and the old movie classics – “The Blue Angel”(1930)
Besides, neither the Tree Swallow guy on the right is nor cabaret performer Lola Lola (Marlene Dietrich) was “an angel” 🙂