Upper wing, left
Step 1 / 5
u: Top inner layer: turn 90°, front face goes left
The front left edge has its middle piece and lower wing matching. The missing wing is high on the front right edge; its right color is the pair's front color.
The mirror of the upper wing on the right, done with the left hand.
Step 1 of 5: u. Top inner layer: turn 90°, front face goes left