Parrot hand painted on polished slate Signed Tijuana 85

This is a hand-painted painting on polished slate featuring a parrot. It is signed "Tijuana" and dated '85, indicating it was made in 1985. The painting is an original piece and is listed by a dealer or reseller. The subject matter of the painting is animals, specifically focusing on a vibrant depiction of a parrot. I attempted to research the signature but could not identify it.