Translucency/Subsurface question, show a shape inside a box

Managed to get this by using substrate, and combining 3 meshes in the same spot, one with the opacity (TranslucentColoredTransmitance - surface tranlucency volume) one controlls the blurry tranlucency (TranslucentColoredTransmitance - Surface Forward shadowing) and one last mesh with invierted normals and SSS. Then inside the mesh is simply a black unlit material.