1970s dark fantasy book cover paper art dungeon and dragons style of a lone knight, standing amidst the ruins of an ancient castle, their sword raised in defiance against a host of surrealistic creatures emerging from the darkness. Render the knight with stoic determination, their armor weathered but resilient, while the creatures exhibit a grotesque beauty, their twisted forms blending seamlessly with the crumbling architecture of the castle, style of crimson and green, scifi pulp, --ar 9:16