His imaginative use of color and design and his aggressive use of vivid, slashing, colorful patterns exude a sense of strength that are bold, gutsy, personal statements of a man who has immersed himself fully in life. Pacheco has the rare ability to transfer these experiences onto canvas. It is this ability that earned him the Gold Medal and First Prize in Tonneins, France: the First Prize, Best Colorist at Musee Du Luxembourg. Pacheco was seeing operations and autopsies as a child and at the same time he was starting his first paintings. Pacheco helped finance his medical education by contributing his cartoons to major national magazines. The anatomical integrity of painted images stems from expertise gained through medical training. His other motifs were affected by art-historical influences-specifically Vincent Van Gogh, Mexicans, Tamayo and Diego Rivera and Rufino Tamayo, the Germans, George Grosz and Oscar Kokoscka, and the Americans, Thomas Hart Benton and Fletcher Martin.