The pumpkin was natively modeled and rendered in Autodesk maya 2020, 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. Also contains a c4d scene, FBX and obj formats also
All textures are in high resolution 4096x4096 with their channels of: Base color, Roughness, Height and Normal