Merlin's Lair

My second submission for the artstation challenge of the Legend of King Arthur in the environment category, I had a blast on this one. I wanted to depict Merlin's cave, I thought it would be fun to imagine he would be using gems, crystals and precious stones as an important part of his magic rituals. You can find more steps and the thought process behind this here :
https://www.artstation.com/contests/the-legend-of-king-arthur/challenges/65/submissions/43427