Born in Trujillo, Venezuela in 1936.
He made his first studies in the Workshop of Plastic Arts of the Atheneum of Trujillo between 1960 and 1963, then exerted as professor of the School of Plastic Arts of Valera between 1964 and 1967. In 1968 he moved to Paris, received a scholarship from the French government and pursued studies of criticism and art with Frank Popper and became his assistant at the Experimental University of Vincennes (Paris, France).
He was appointed assistant associate to teach courses in contemporary art, a position he held for 25 years.
From its beginnings, its work falls within the cinetismo, to which it incorporates other elements like the ludic resource and the participation of the public in the work, in such a way that this becomes not only a transforming element of the work but in a component Essential in them - a process that the artist calls perceptivism -, as in the tactile Psychomagnetiques, presented in his first individual in the Museum of Fine Arts (Venezuela) in 1976.
In 1978 he obtained a research grant from the John Simon Guggenheim Foundation (NY,USA), which has only three months not to interrupt his chair in Paris. From this research emerges the polysensorial alphabet, whose principle, as expressed by the artist himself is "non-inhibition of creative abilities at the time of learning to read (as is common sense), and put on an equal footing Children from different socio-cultural backgrounds, and to eliminate the omnipotent power of the teacher "(1979).
Between 1978 and 1980, Colmenárez developed a work inspired by urban graffiti called Psicograffitierra, metallic surfaces of metal covered with dust, so that the viewer could intervene the work by drawing on its surface and modifying it at will.
From 1981 onwards, he exhibited "Manipulable Structures" at the Reattu Museum in Arles (France), "Letters of Love to Japan" at Tokyo's K Gallery, in 1988 he made a large sculpture for the Seoul Olympics (South Korea).
Afterwards, he exhibited in many solo and group shows in Venezuela, Colombia, USA, France, South Korea, Mexico among others.
In 1997, he joined Medicci Gallery (Caracas and Miami) and presented the solo exhibitions "Nomadic Latency", "Penas de Amor Pérdidas", "Voyage", "El Viaje de Ulysses", "Erotika" and "Des-Trames".