He participated in many international events. Among the most remarkable there are the La Tour Paris Project, 2013, considered one of the most innovative contemporary art projects worldwide, and Artmossphere, the first Street Art Biennale held in Moscow in 2014, featuring 70 artists from all over the world.

In 2015 his work appeared in The Urban Contemporary Art Guide, edited by the Graffiti Art Magazine, where he ranked amongst the world’s best 100 emerging artists of 2015. The same year he completed an extensive public artwork in Cagliari, Italian Capital of Culture back then.

The following year he completed several important public artworks in Spain, Finland, and Australia, respectively in Madrid, Helsinki, Albany and Perth.

In 2020 Tellas was invited by Paratissima Art Fair to create a work on a large surface covering the courtyard of the Contemporary Art Center Artiglieria, in the occasion of its re- opening.

His artistic production also includes significant partnerships with important Italian fashion brands, including Ferragamo and Marni. In particular, the multiple collaborations with Marni resulted in the documentary A grande terra do Sertão, presented at the 56th Venice Biennale.

Besides Rome, Palermo and other Italian cities, some of his latest public artworks can be found in Atlanta (USA), Klaipeda (Lithuania), Delhi (India), Montreal (Canada) and Kaohsiung (Taiwan).