The Accordion was natively modeled and rendered in Autodesk maya 2022, however it works fine in any older version that arnold has, anyway the materials have all their pbr textures, so it can be used in any other engine rendering with ease, in the file that I leave from maya there are two scenes, one contains the exact scene that I use for the results you see in the previews, and another scene only contains the modeling.

Coments The model includes a texture version without any kind of sticker, so you can customize it if you want. The ignition effect of the rockets is a light, it is not in the textures

All textures are in high resolution 4096x4096 with their channels of: Base color, Metalness, Roughness, Height, Normal included : MAYA FBX OBJ c4d