One of the amazing things about Blackbird was that it was literally made to be timeless. The original song was "Black girl singing in the dead of night...", about the Civil Rights movement, but Paul wanted it to be more applicable to other people's problems so he changed it to a metaphor about a blackbird.
Gaaaah this is beautiful! I love that pretty textured shading not only because it looks amazing, but because it's a mystery to me. I don't know if i'll ever figure out how to do it. Their expressions are just perfect! Great song too. Blackbird singing in the dead of night. x3