By https://vk.com/kashtan_budni
"It's Lycoris/the flower of death.
Not exactly a straight sketch, but okay, ahahahahahahahah.
The flowers themselves are very beautiful, but because of their location, they have been given such an intimidating name as "the flower of death". Alas and ahh, lycoris usually blooms near a cemetery, so it symbolizes death or misfortune, and is also said to guide a person's soul to the next reincarnation:)"
From author