Viktoria Ridzel, better known as Viria, is a famous artist who is well known for drawing scenes and characters from numerous shows and books, including Harry Potter, Haikyuu, Percy Jackson, Doctor Who, FullMetal Alchemist, some Attack on T
itan characters, and a little bit of Disney princesses and more. Her nickname is a combination of her first and last name. She lives in Ukraine and speaks Russian, as said in her FAQ page. She is said to have black hair and gray eyes, and is an art student in her town's university.
Rick Riordan, author of the Percy Jackson and the Olympians series, has commissioned her work as official art, and has her artwork of the Percy Jackson characters on the official Percy Jackson website.