Laser Cut Wooden Frame with Musical Note Acrylic engraving looking like sand

Information

      First, I cut 10 mm acrylic to 5 x 5 cm using a CO2 laser.
The musical note was engraved in three passes using the fiber laser of the Xtool F1 Ultra. Focus on the surface of the acrylic.
However, the engraving was then reproduced inside the acrylic, creating this cool sand effect. I then drew and cut out a frame from 3 mm plywood. I added 4 inserts to secure the acrylic. I assembled everything with superglue and it was done.
This was more of a coincidence, but the result is super cool.