The lodestones of Hockney’s work make for unlikely pairs of opposites: London and Los Angeles; Picasso and Old Master painting. Though Hockney came up through the School of London scene during the Swinging Sixties, many of his most famous works are set in the City of Angels, where he keeps two homes. And though his compositions abound with references to the great names of Renaissance art, many of his stylistic clues are taken from Picasso. Somehow, Hockney has juggled these disparate influences, forging an aesthetic that’s all his own. This retrospective marks’ the artist’s 80th birthday with a presentation of pieces from 1960 to the present.