Here is some conceptual fantasy environment explorations done with both mediums 2D and 3D.
Fantasy Concept 1 : The Lord of Serenity
Fantasy Concept 1 : Step by step
Fantasy Concept 2 : Getting in to the Dragon's Wall (Colored one)
Fantasy Concept 2 : Getting in to the Dragon's Wall (Sketchy one)
Getting in to the Dragon's Wall - Process of the work
Fantasy Concept 2 : Dreamland Alone
Fantasy Concept 2 : Dreamland Alone Value
Mood and Composition Study
Giant Rush
Pirates Land (rough light and mood study)