A Great Mormon basks on top of a Paper Kite next to this Emerald Swallowtail from Southeast Asia.
This info from AMNH:
The emerald swallowtail (Papilio palinurus) is sometimes called a banded peacock, but it might just as easily be called a chameleon. Like the shade-shifting lizard, the emerald swallowtail changes color depending on the angle of the light, and it has a strikingly disparate appearance from one side to the other.
The bright bands on the butterfly’s generally dark green upper side aren’t caused by pigments but by the surface of unique microstructures in the scales on its wings. When the scales reflect blue and yellow light, their tight arrangement allows the colors to mix together and be perceived as the iridescent green bands from which the butterfly takes its common name.
Rebeccas Butterfly Reflections 