A majestic digital illustration features an adult lion standing on rocky terrain, facing right with its head turned slightly towards the viewer. The lion's fur is detailed, showcasing a golden brown coat with a dark black mane that contrasts sharply against its lighter body. Its muscular build is emphasized by soft, diffused lighting that highlights its robust structure. The lion's expression is regal and stoic as it gazes into the distance, exuding strength and dominance. Behind the lion, a vast, rugged mountain range stretches across the midground, rendered in muted shades of gray and blue-green. The mountains are depicted with intricate details, showing jagged peaks, steep slopes, and shadowed valleys. In the background, a large, luminous full moon dominates the upper center of the scene, casting a gentle glow over the entire landscape. The moon's surface shows visible craters and textures, creating a realistic yet ethereal appearance. Surrounding the moon is a deep teal night sky filled with scattered stars of varying brightness, including four bright, twinkling stars near the lion's head. A subtle gradient from darker at the top to lighter near the horizon adds depth to the composition. The overall mood is serene and majestic, enhanced by the balanced exposure and cool color palette dominated by midnight blue, sandy brown, charcoal gray, and forest green. The artwork has a vintage poster style with a textured border resembling aged parchment or paper, contributing to its nostalgic and timeless quality.