There are many famous Filipino Illustrators nowadays but the mos famous among them all are Alfredo Alcala, Larry Alcala, Arnold Arre, Nonoy Marcelo,
Pol Medina, Jr., Cal Sobrepeña, Pierre F. Patricio. They are really great and best of all Famous Filipino artists in terms of illustrations.
Some famous works of Alfredo Alcala are Captain Marvel (Marvel Comics, 1974)
Conan the Barbarian (Marvel Comics, 1975; as inker (with John Buscema as penciller)
Adventures on the Planet of the Apes (Marvel Comics, 1976-1977; an adaptation of the second, third and fourth movies of the Planet of the Apes series).