Here is another small update with studies and two playing arounds :))
This first study was done in black and white drawing the line first and then render it paying attention to anatomy and volumes as well as where the light hits first.
Then using blending modes as color/normal/overlay,a bunch of clipping masks[alt click between layers->paints only the pixels visible on the layer below] i managed to give it a bit of a human flesh in daylight and then using curves i turned it intro a night light.And after that i painted a second source of bluish light on a normal layer.
These other two studies where done from ref without making any construction lines.Painted directly with brush strokes,from big shapes to small ones.
Thank you for watching