World Creator 2 + Quadspinner Gaea + Unity HDRP + GIMP
Additional assets
Expanse Clouds - https://assetstore.unity.com/packages/tools/particles-effects/expanse-volumetric-skies-clouds-and-atmospheres-in-hdrp-192456
Azure Nature - https://assetstore.unity.com/packages/3d/environments/fantasy/azure-nature-167725
Vegetation Engine - https://assetstore.unity.com/packages/tools/utilities/the-vegetation-engine-159647
Used Vegetation Engine to Convert Azure Nature to be compatible with HDRP