A hyper-realistic depiction of Thor, the God of Thunder, showcasing awe-inspiring armor adorned with intricate and symbolic engravings that tell ancient tales. In his right hand, he wields Mjölnir, crackling with vibrant energy as lightning bolts dance around him. His presence is commanding as he stands at the majestic entrance of Valhalla, the grand hall shimmering against a backdrop of celestial clouds. The atmosphere is charged with electricity, highlighting the immense power emanating from the Norse god, under a sky painted with hues of twilight.