Les is member of the Nunnawunna Clan Group belonging to the Anaiwan Language Nation of the Northern Tablelands area of New England, NSW.
Les is known for his extensive cultural knowledge (and as a presenter of such knowledge). His paintings depict sacred stories of the travels and creations of his traditional Nunnawunna Clan.
As an artist, Les is known for his distinctive sand paintings representing his country and his spiritual Dreaming. Les is often commissioned for his unique family portraits which he produces in consultation with family members using traditional symbols and contemporary images.