This is the Kaijin. I created this cryptid creature / monster art for Fairytales and Myths.
Kaijin is a word in the Japanese language that means a strange, mysterious, legendary, or mythical humanoid (human-like) creature.
When creating this creature, I wanted the original character design to be bounding through the cherry blossom trees with Mount Fuji in the background. The deadly nature of the creature is symbolized by the Red Spider Lily flowers at the bottom, which are often thematically incorporated into anime as a harbinger of death.
Check out the Kaijin page for more details.