Start working with the details. The illumination from the backside comes to accentuate the character of these beings ? draw. It also creates a magical atmosphere and mysteriousness. The world from underground should be represented in violet and blue nuances. On this stage I should determine the source of illumination and illuminate the figure. I've chosen the Dodge Tool and a tough brush for processing the layer. The features became lighter and a kind of mosaic appeared on the picture. Use the same instrument to accentuate also the lighter places on the figure.