I lost 3 pcs of paintings, these are very valuable to me, my wedding anniversary gift to my wife

During inspection of handcarried luggage, I forgot to get it after passing the scanners at pudong airport, they are wrapped with newspapers with no name but I can describe them if ever you'll find it. Would you be so kind to assist me regarding this matter. My Departure flight PR337 1600H/16th June. Hope to hear fro you soon, many thanks in advance.