21 Jean-Claude Plewniak (Mark Renton) (b. 1981) "Silence," 2026 acrylic/canvas, 90 x 90 cm Signed, dated and described on the reverse: 'Jean Claude Plewniak / Mark Renton ID: 182780 Taxes and fees - In addition to the hammer price, the successful bidder agrees to pay us a buyer's premium on the hammer prices of each lot sold. On all lots we charge 20 % of the hammer price.