CYL Matsu
GMK Matsu was inspired by the art and colors on Hanafuda cards, most particularly the suit for the month of January, which depicts a crane amongst pine trees.
Hanafuda cards are most commonly used in the game Koi-Koi, and it's close relative Go-Stop, and are where I personally obtained my interest in them.
It's been really enlightening and fun to be able to do a deep dive into a subject that I enjoy but hadn't been super-versed in, and it's been really fun designing a keycap set around it all to tie it off.
The set uses all stock colors, with UV printed sublegends, so colormatching should not be a huge issue that occupies any time.