His work has been shown regularly in several countries, especially France and Mexico, and he has been recognized with membership in the Salón de la Plástica Mexicana.
His playing style works to incorporate audience participation in the music, for example by distributing cans with rice for people to provide rhythm, and he prohibits applause after each number.
[2] Valadez began his career as an active member of the Taller de Gráfica Popular from 1963 to 1965, participating in the group’s exhibitions both in Mexico and abroad.
[4][7][2] Common themes in his work include bullfighting, urban scenes in Paris, and the people of that city, prostitutes, lovers, dance halls, cafes.
[3] Despite his more European focus thematically, Valadez maintains his Mexican artistic perspective, showing influence from painters such as José Clemente Orozco.