1970s Dark Fantasy Warrior vs Serpent Monster

1970S dark fantasy style, Full-body view, eye-level perspective, a muscular warrior with a horned helmet, long beard, round red shield, and sword stands knee-deep in rippling water at the center foreground, his body angled slightly left, shield raised, sword lowered, facing forward. Behind him in the middle ground, a massive serpentine monster with a pale segmented body, gaping fanged mouth, and large fin-like appendages looms overhead, its head dominating the upper half of the image. Shafts of light descend from the upper left, illuminating both figures against a dark, stormy sky.