For Hard & Fast, I've been using iconography and visual symbols from various sources of Japanese woodblock print art. I especially adore painting Cor's hair, because it's the same 'texture' as rabbit-soft hair lol.
Example: https://www.wikiart.org/en/hiroshige/rabbits-under-moon
Gladio's hair is akin to the texture of feathers (like his tattoo!).
This was not only a sexy project, but another fun opportunity to pay homage to the kind of art I love {:3c