The next image, found on Wikipedia and elsewhere is undated, but her headdress and dress match.
Anne wears what looks like a leather vest over a split bodice (a jacket?) and a wide jeweled headdress for this miniature.
Keywords: 1620, Hoskins, Anne Clifford, Countess, Clifford family, Sackville family, British, straight coiffure, jeweled headdress, veil, high enclosing neckline, ruff, split under-bodice, vest over-bodice, tabbed sleeves, earrings, jeweled bodice ornament