In the archive:
2014 MAX Full set (Corona)
OBJ
Maps

The anti-aliasing stack is not collapsed.

In order to save size in the OBJ file one element of each model is created.

Cotton is made with the help of Hair and Fur. Before rendering you need to go to the Rendering – Effects tab select Hair and Fur and select the mr prim & geometry mode below.

For Corona render it is recommended to put version no lower than 1.5 since the glossiness of materials is adjusted to the PBR.