Rings of Death

Recently, I participated in the "Iron Wings" competition on Render.ru and I won the first prize, I want to once again express my gratitude to the participants , organizers and the jury, you are all cool guys, thank you for the experience.
https://render.ru/xen/threads/obsuzhdenie-konkursa-zheleznye-krylja-velikaja-vozdushnaja-gonka.181270/page-13