https://www.artstation.com/marketplace/p/aJakN/30-marble-materials-sbsar-4k-pbr-texture-vol-01

Inside the product:

• 30 SBSAR files(Substance Painter) with adjustable parameters like(Normal,Roughness,color,saturation,lightness,shape and mask)
• 30 4K PBR textures (basecolor,normal,roughness)

https://www.fab.com/listings/558372d8-3643-4d58-855d-738fbfdfcc96

• Elite Landscapes is a very affordable pack for high resolution landscapes. Coastal Ruins pack features 4 landscapes with 8k resolution, a movie matte painting quality sky sphere and village ruins for decoration. Also included the levels and light setups you see on the screenshots and video. The pack has a very basic landscape material but for anyone who wants to use advanced landscape materials; I also included the original heatmaps so that you can have all the details of the original terrain with your own materials or any material pack that can be found in the Marketplace. Sky Sphere uses the same system as in Epic's Demonstration Projects. It's a one, distorted 360 degree image, modified for the UVs of a sphere mesh.