Altar on an Alien World - An Oil Painting

An ancient ceremonial altar carved from basalt and obsidian sits on a windswept alien plateau, rendered in lush oil painting on canvas. The altar bears glowing alien glyphs and carved runes, with shallow bowls and shimmering minerals as offerings. Around it, bioluminescent flora twists in surreal shapes, and wisps of mineral dust float in the air. The landscape features jagged rock spires and distant mountains under a dramatic sky: two moons, a ringed gas giant blazing in violet and turquoise near sunset. Thick impasto brushstrokes, rich chiaroscuro, and warm candle-like glows contrast with cool cosmic blues and purples, creating depth through glaze layers. The composition is a three-quarter view, slightly low angle, with a soft halo of light behind the altar, lending a solemn, mysterious mood as if a forgotten rite is about to begin. In the style of classic oil masters, emphasizing texture, depth, and luminous color.