Agreed - there would definitely be an audience for it.
The fact that they seem to be keeping the same hair style suggests to me that they want to play off the idea of being twins, even if they aren't on camera together.
I guess it's another argument for doing a video call or some such in advance. Even without retouching, people who spend a lot of time getting their pictures taken soon learn about favorable lighting, angles, etc.
Pic is on numerous pin-up sites and dates back to at least 2015. Nice taste, though.
https://i.pinimg.com/736x/7d/43/39/7d43393d97c2aa4dccd7bba8a7859ec2.jpg