Autumn Angels

Description for AUTUMN ANGELS by Arthur Byron Cover:

A wild young Chicano artist who covers Greater Los Angeles with fantastic graffiti. A beautiful African telepath who opens the door to communications with the deadly Sirens of JupiterHogan's debut, first published in 1990, introduced the subgenre of Chicano SF to a startled, dazzled American audience. All Pablo Cortez cares about is creating art, whether it's humongous graffiti sprayed across Los Angeles or zero-gravity paint slinging in space. When he confronts the alien Sirens of Jupiter, who have zapped the minds of earlier explorers, he takes their overwhelming flood of bizarre images as subject matter for new masterpieces. A jangling, rambunctious picture of artistic genius ... tons of fun for freethinking readers who appreciate heroes with cojones. 

This is #2 in Harlan Ellison Discovery Series.