Of Frelin's 2006 work, The Mirroring Stone, a gravestone made of polished steel, Boston Globe Correspondent Cait McQuaid said: "Walking past, the reflection of grass and other monuments reads like a dizzying warp in your vision.

The project, White Line (Tokyo), consisted of lighting instruments suspended along an arching steel cable, was installed in the garden of the International House of Japan.

[14] The Center for Contemporary Art, Kyiv, commissioned Frelin and two others to travel to Ukraine and produce works based on the experience, which were later exhibited in Los Angeles.

"With an over-the-river-and-through-the-woods storybook feel," said the Milwaukee Journal Sentinel's Mary Louise Schumacher, "Frelin's works are filled with pilgrimages and a sense of place"[16] Frelin has completed residencies at the Skowhegan School of Painting and Sculpture,[17] MacDowell Colony,[18] Ucross Foundation,[19] Fine Arts Work Center,[20] Bemis Center for Contemporary Arts[21] among others.

[22] He participated in 2013's Art in Odd Places festival with a performance piece, KODAMAZOTHGOLEMNKISI[23] In 2014, Frelin's Crier appeared as part of The Last Billboard installation by Pittsburgh artist Jon Rubin.

[25] In December, his work was exhibited at the Radiator Gallery in Long Island City, alongside artist Rena Leinberger in a show titled From Within the Flesh of the World.

Frelin’s aesthetic and philosophical road––twisting and turning between human and natural, between theory and practice––is treacherous, but he also shows us that the marks left in the struggle for control can serve as portentous blazes on the trail.”