Miyano's current body of work is an exploration of man's relationship to nature. He has a history of environmental interests and scholarship as a naturalist which he expresses in his art through metaphor and respect for his materials. When Miyano was an art student, Isamu Noguchi encouraged his sculptural use of stone and these meetings led him from his studies in ceramics to pursue investigations into the qualities of local volcanic basalts as a medium. Miyano is currently sculpting a series of large scale basalt pieces for the Judiciary Building at Kapolei.

Miyano most recently had a one-person exhibition, HISTORIA : NATURALIA ET ARTIFICIALIA, at the Honolulu Academy of Arts, as the recipient of the 2008 Catharine E.B. Cox Award for Excellence in the Visual Arts. Pulitzer Prize winning poet, W.S. Merwin writes, "Those of us who know him have been aware for years that Leland is a true original, a living treasure among us, and it is fortunate for all of us that his sculpture, with its representations of the irreplaceable life of these islands, is receiving some of the attention and honor it deserves."

For this project, Miyano celebrates the cycles of life by transforming a fallen tree in a forest; from a log to to a simple bench. His honest approach to his materials reveals the history of the process and chainsaw marks are purposely retained as a palimpsest . Miyano has burned the supports of the bench , which are also part of the same Primavera tree, to reflect transformation and allude to man's changing relationship to nature. The title, AUTUMNAL, is a metaphor for the cycles in the life of this Primavera tree...from a living organism in an ecosystem to its death and fall and future as a bench.