Black alien desert teeming with purple-green flora, alien vegetation swaying under star-strewn skies, soft-edged trees cloaked in a vibrant fusion of purple and green, otherworldly bioluminescence creating a captivating backdrop, each detail intricately crafted to highlight the surreal beauty of this extraterrestrial landscape, shadows dance gracefully in the soft, volumetric light, chiaroscuro effects enhance the mystery, Unreal Engine style