For spring, it's all in the heel detail. Whether in maximalist or minimalist form, heels—from block to pin shapes—take on a life of their own in eye-grabbing metallics and Lucite. Valentino’s multicolor sandal is amped up further with a rainbow Lucite heel. Nicholas Kirkwood's patent tangerine pump gets a minimalistic finish with a metal pin heel. Laurence Dacade's flaming block heel heats up the leather sandal style. See by Chloe's suede sandal shines with a gold metallic cork heel. While the newness of these styles occurs in the back, the aesthetic is nothing but forward.