Inspiration from the Waltz wa Shiroi Dress de - 円舞曲は白いドレスで by Saito Chiho. Such a really lovely shoujo manga with a pretty drawing style ^^ Here is the reference picture
Hope you like it
~ Please, download the image for the better quality!
Night Sky texture © *Moonchilde-Stock
Endymion & Serenity © Naoko Takeuchi
Art © me
You mean Mamoru's foot? I don't know, I think from that angle his foot is invisible...