If you don’t know Saint Seiya… It’s an anime also known as Knights of the Zodiac. At first it was a Japanese manga series written and illustrated by Masami Kurumada.
The story follows five mystical warriors called the “Saints” who fight wearing sacred armors named “Cloths”, the designs of which derive from the various constellations the characters have adopted as their destined guardian symbols, and empowered by a mystical energy called “Cosmo”. The Saints have sworn to defend the reincarnation of the Greek goddess Athena in her battle against other Olympian gods who want to dominate Earth.
Me and my brother used to love this when we were kids, so I decided to do a small drawing of the Pegasus Seiya.