Frederik Hesseldahl is an educated architect and an self taught visual artist. He developed his artistic style through his graffiti hobby with the artist name "Clean". Hesseldahl now works with an abstract image universe with clear brush strokes and watercolor techniques mixed with spray paint. His paintings work like chemical work in expressive movements with a special color coordination. Hesseldahl uses the colors to express different moods and has found the right mix of dynamism and harmony in his paintings to Kuvio.