Since everyone was so hard on Titian I thought I ought to come to his defense by posting one of the most impressive paintings in the Prado Museum.
The Emperor Charles V at the Battle of Mühlberg (332 × 279 cm), in the Museo del Prado, Madrid–by who else but Titian? (photo released into the public domain by The Yorck Project, published here)
The horse is so black its eyes are hidden here, though you can see them on the original painting, which is as big as the wall. He gallops like no other painted horse gallops and those little knots of velvet on his saddle-blanket bob and spin with the movement. This is a portrait fit for an emperor. Vasari can draw until he’s blue in the face and he will never paint anything like this.