concept art speed painting. Wizard/Sorcerer's cave of some kind. A magic staff left behind for some reason. They really should have taken the staff with them.
Re-touch, added some noise, highlights, hopefully the light makes more sense now, and the staff is more visible.
digital concept painting
Some form, figures, tone down the light
Add a glowing point of interest, a portal, or magic jewel, etc...
Focusing on lighting direction and intensity, contrast and balance.
Loaded Mixer brush copy cyan channel only for back ground, beginning to sketch and paint the cave.