1971 - Born in 1971 in Yerevan, Armenia.
1990-1996 - graduated from Yerevan State Academy of Fine Arts, Faculty of Painting.
Since 1996 Leo is a member of National Artists' Union of Russia and International Federation of Artists.
Since 2008 he is a member of Artists' Union of Armenia.
2013 - Art Expo Monaco
2013 - Paris, Galustjan Gallery
2012 - Personal exhibition "Monochrome emotions" - Dalan Gallery, Yerevan
2012 - Group exhibition - Yokohama Creativecity Center, Japan
2012 - Personal exhibition "Meditation of Happiness" - Academy Gallery, Yerevan
2012 - Group exhibition of Armenian and Japanese artists, the Museum of Russian Art, Yerevan
2010 - Group exhibition "ABSTRACTION" - Museum of Contemporary Art, Yerevan
2009 - GH Art Gallery, Prague
2000 - "Armenian artists on cyberspacial relations" - ACCEA, Yerevan
2000 - International Biennale, Gyumri, Armenia
1999 - Central House of Artists, Moscow
1998 - Albatross Gallery, Moscow
1998 - Personal exhibition, Gallery Goyak, Yerevan