Here are the links to the free assets we will be using.

Install Textures

https://assetstore.unity.com/packages/2d/textures-materials/handpainted-grass-ground-textures-187634

Install Skybox

https://assetstore.unity.com/packages/2d/textures-materials/sky/fantasy-skybox-free-18353

Install Grass and Flowers

https://assetstore.unity.com/packages/2d/textures-materials/nature/grass-flowers-pack-free-138810

Install Low Poly Nature Pack

https://assetstore.unity.com/packages/3d/environments/lowpoly-environment-nature-pack-free-187052

Install First Person Controller

https://assetstore.unity.com/packages/3d/characters/modular-first-person-controller-189884