The Black Bones Treasure Hideout

Here is my entry for the #20 Challenge held by DIGITAL PAINTING SCHOOL, "Sails of the Black Bones", category environment. The theme was:

"The Black Bones Treasure Hideout.
Deep within a strangely shaped cavern adorned with all sorts of stalagmites lies the lost treasure of the Black Bones. A heavy, damp atmosphere reigns there, pierced by shafts of light from the ceiling. Of course, no one alive can reveal its location, but it is also said that on the night of the full moon, the pools of water that dot its floor begin to glow with a faint blue light. So we're counting on you to imagine this place, as beautiful as it is mysterious, and let us dream…"