MONARCA Modern Sliding Door pt2

I made this door for my father’s house. I started with 0.2 “ thick MDF planks, after having cut them with the desired dimensions, I made a supporting structure in “ fir joists. After gluing an MDF plank to the structure, I filled the spaces with extruded polystyrene sheets. Finally I glued the second plank. I made the surface decoration cuts with the circular saw. I painted the door with a water-based enamel paint (light blue - RAL 5012), giving four coats of paint. I fixed the door to the wall with