Born in 1977, Yamagata Prefecture, Japan.
Koseki grew up in a family-run photography studio and has been immersed in photography since childhood. He now continues the family business while pursuing his own creative work, focusing on the natural landscapes of Tohoku.Venturing into mountains, forests, and rivers, he hones his senses through photography, exploring the philosophical relationship between humans and nature. His body of work, including the acclaimed series "Hotarubi -Summer Fairies-", is dedicated to capturing the essence of Yamagata and the wider Tohoku region.
Awards
Wildlife Photographer of the Year 2021,
Photolucida Critical Mass Top 50 (2023, 2024),
LensCulture Critics’ Choice 2024 Top 10 (selected by Megan Wright [Saatchi Art] / Paolo Woods [Cortona On the Move] / 2021 Chris Pichler [Nazraeli Press]),
Sony World Photography Awards 2025 Professional Shortlist,
Earth Photo 2025 Shortlist,
BigPicture Natural World Photography Competition (2021, 2023, 2024),
Nature’s Best Photography International Photo Awards, etc.
Exhibitions & Publications
Solo exhibition "Forest of Misty Vision" (2022, Fujifilm Photo Salon, Tokyo, Osaka).
Other exhibitions at the World Economic Forum (Davos, Switzerland), Natural History Museum London (UK), California Academy of Sciences (USA), Photo London(UK),as well as in the USA, UK, France, Italy, Hungary, Brazil, and Russia.
Featured in National Geographic, Harvard Business Review, Aesthetica Magazine, among others.
Published the art book "Forest of Misty Vision" (TOSEI Publishing Co.)
