Cosmic Bull #90, "The Aurora Guardian," emerges as a sentinel beneath the celestial dance of an aurora borealis that sweeps across the cosmos with the fluidity and grace of Van Gogh's immortal brushwork. This majestic creature's fur is thick with the texture of the night sky, its body adorned with specks of luminescent constellations that twinkle against the vivid swirls of emerald and azure. It gazes into the distance, eyes alight with the wisdom of the ages, as if contemplating the eternal ballet of stars and planets that perform before it. The bull's horns arch gracefully, silhouetted against the undulating light show above, suggesting a crown bestowed by the universe itself. The verdant pastures below, a sea of cosmic green, appear to pulsate with life, reflecting the bull's inherent connection to both earth and ether. This image is a tribute to the guardianship of nature, a reminder of the thin veil between the known and the unknowable, and the silent, stoic protection offered by the universe's most humble yet powerful creatures.