[Bakhtiyar]

I would like to create a hybrid mesh as shown in the figure below, but I am stuck with creating its geometry.

First, I built the smaller box (Add Material) and Cut the person out from the smaller box. Further, the smaller box was frozen and the bigger box was extruded (Add Frozen). Then the boxes were separated with Boolean (Preserve bodiese - YES). Two boxes are the same fluid - air.

I am not sure if my approach is correct, please correct me if I am wrong.

hybrid mesh.jpg