Spalted Burl Hand Cut Jigsaw best Puzzle

best I made a puzzle just like this one a year ago, and I liked it so much I made another one. This wood is very light and fragile. The pieces themselves are sturdy, but the wood tears out when it is being cut. If you look closely at the pictures, you will see evidence of this. I sanded it to 1500 grit and waxed it. It has twelve pieces and measures 3 3/4" x 2 5/8" x 3/8" or 9.5 cm x 6.6 cm x 1 cm.