As a student, Miyakawa has appeared in group exhibitions at art museums including the Museum of Fashion and Textiles (Paris), The Galerie nationale du Jeu de Paume (Paris), Collection Lambert (Avignon), and a solo exhibition "Trip of Hiakru" (Takahashi Collection, Tokyo). She received the 2007 Lissignol-Chevalier Prize in Geneva. In recent years she has explored body modification (nail art, body cutting, tattoos, etc.) in relation to humankind's primitive forms of creativity found in cave paintings, holding solo exhibitions "Fleshing" (TRAUMARIS, Tokyo) and "Glittering" (3331 Gallery, Tokyo) in 2014. In the same year, works based on Altamira cave paintings in the "DEAD at HOME" Exhibition were well received in Salamanca, Spain.
Embellishment applied directly to the body, such as tattoos or nail art, can be traced back to cave paintings or even earlier. It could be argued that the root of art stems from the paint-covered fingertips used to create negative handprints, the oldest of the cave paintings. Just as hair and nails grown naturally from the body, so too does creativity pour from us - from the head of a mammoth, from the fingers of "Lucy"