Rigged Figure model has been created by Cesium (https://cesium.com/cesiumjs/),
and licensed as Creative Commons Attribution 4.0 International License.

Check for details: http://creativecommons.org/licenses/by/4.0/

Avocado model is provided by Microsoft
and licensed as CC0 Universal Public Domain

Check for details: https://creativecommons.org/publicdomain/zero/1.0/

GLTF sample models for testing are taken from: https://github.com/KhronosGroup/glTF-Sample-Models/