Size 50x78x238 cm and 50x78x152 cm
-If using import formats, apply MeshSmoth with 2-3 iterations. -Who works in V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is lower than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable for you