Recently i do love to create clouds with the volumetric shader. There are still so many things i want to try! Also i think an animation would be quite nice since eevee is so fast at computing volumes , its insane.
Well im really no eevee expert. In fact i render almost exclusively in cycles… For me eevee is great for previewing volumetrics and materials ,but to generate those mountains i need a real displacement shader. Im not sure what you mean by good lighting… If your talking about those clouds just make sure that you have a high denisity and that the volumes start/end distance is not too far apart (final render was in cycles tho). Otherwise make sure to have screenspace reflections and AO enabled and bake your lighting with an irradiance volume!