https://www.epo.org/en/service-support/faq/about-us/call-artists-paper-transformation/digital-3d-model-one-formats-usdz
Is a digital 3D model in one of the formats USDZ, OBJ or GLTF absolutely necessary or can I as an artist also send you an illustration of my proposal as a Photoshop animation?
No, it is not necessary to submit a digital 3D model. An illustration of your proposal and/or submission of a physical model will be fully sufficient.