Create a hauntingly beautiful image of a grand, abandoned mansion on a dark and stormy Halloween night. The image should be in a landscape format, with the mansion's towering spires and turrets reaching towards the moon like skeletal fingers. The style should be a mix of realism and Gothic romanticism, with intricate stone carvings and overgrown vines crawling up the walls. The lighting should be dramatic, with flashes of lightning illuminating the dark sky and casting eerie shadows on the mansion's facade. In the foreground, a few wispy ghosts or ghostly apparitions should be visible, adding to the sense of foreboding and mystery. The focus points should be the mansion's grand entrance, the twisted tree branches, and the ghostly figures. Photoshop effects could include subtle misting, lens flares, and a warm, golden color grading to evoke a sense of nostalgia and eeriness.