Heimdall, the vigilant guardian of the Rainbow Bridge, stands tall against the backdrop of the cosmos. His golden armor gleams under the shimmering colors of Bifrost, each hue reflecting the vast realms he watches over. In one hand, he holds his colossal sword, Gjalhorn at his side, ready to sound the call of Ragnarok. His piercing, all-seeing eyes scan the endless expanse, able to sense the faintest ripple in time and space. The stars whirl above him as he stands unshaken, ever watchful, his face etched with determination. Behind him, the Rainbow Bridge arches with divine brilliance, connecting Asgard to the farthest reaches of the Nine Realms. His presence alone is a testament to the unyielding defense of the gods.