Dark Fantasy Orc Battle

Create a dark cinematic fantasy battle illustration in a gritty semi-realistic painterly style. The scene is set in a ruined stone corridor at night, with broken masonry, black shadows, and a narrow cobblestone floor. In the foreground, show the back of a large dwarf warrior with long reddish-brown braided hair, heavy engraved metal shoulder armor, leather straps, and a hammer or axe handle gripped at the right edge; keep this foreground figure intentionally out of focus to create depth. In the midground, depict exactly two combatants locked in a dramatic clash: one enormous green-skinned orc warlord with tusks, pointed ears, scarred muscular arms, spiked dark armor, and a massive chipped battle axe raised in his left hand; and one agile young human knight with hero hair color, sharp determined expression, ornate dark armor, a torn black cape streaming behind him, and a sword braced against the orc at chest level. Add a bright orange-white spark burst where the sword strikes the orc armor, with flying embers and metal fragments radiating through the darkness. Use high contrast chiaroscuro lighting, warm sparks against cold green-black shadows, intricate armor detail, dynamic motion, dramatic perspective from behind the dwarf observer, shallow depth of field, no modern objects. Include a small elegant signature and date in the bottom-right corner reading date text and signature text.