The photos couldn't convey the beauty of these butterflies. Their lower wings are made of holographic foil (paper-based). It shines and shimmers in all possible colors and shades in bright light. Butterflies look just great. But precisely because of this overflow of colors I could not take pictures of them, like the previous five, in bright sunlight.
I love these two-layer butterflies. I will be happy to develop this topic further.
The templates for cutting these butterflies are in the zip file.