https://gamesartist.co.uk/grand-space-opera/
Senior Level Artist Aleksandr Karabardin breaks down his environment, The Grand Space Opera. In this article, he talks about, goals, blockout, landscape generation using Houdini, creation of trees, roots, spores and foliage, hardsurface modelling, masks, texturing, water shaders, lighting effects and the post-process.
https://www.artstation.com/g2hs
https://www.artstation.com/artwork/xJn5XY