a mesmerizing oil painting of a spiral galaxy, showcasing its ethereal beauty against the deep, star-speckled darkness of space.

a mesmerizing oil painting of a spiral galaxy, showcasing its ethereal beauty against the deep, star-speckled darkness of space. The composition should highlight the galaxy's luminous core, radiating warm golden light, surrounded by gracefully swirling arms filled with glimmering stars, glowing nebulae, and subtle hints of cosmic dust. Use dynamic, textured brushstrokes to depict the vibrant hues of white, blue, and gold, contrasting against the velvety blackness of the universe. Emphasize the galaxy's expansive and awe-inspiring nature, capturing the serene yet infinite grandeur of this celestial scene.