Siste, viator I and VI/III from the "Siste, viator (Stop, traveler)" cycle, digital painting.
More: http://www.karolak-art.com/project/esoteric-art-the-siste-viator-cycle-digital-painting-and-oil-painting/
More: http://www.karolak-art.com/project/esoteric-art-the-siste-viator-cycle-digital-painting-and-oil-painting/