A low-poly 3D rendered underground crystal mine at twilight, jagged crystal veins embedded in rough stone walls where determined gnomish miners in leather aprons and headlamps chip away at glowing amethyst and quartz formations, pixel art pickaxe and crystal icons float in UI style, warm lantern glow from portable oil lamps illuminates coal dust particles floating in still air while cool crystal bioluminescence reflects off wet rock surfaces, gentle chipping sounds echo through cavernous tunnels, eye-level composition with horizontal depth, nostalgic 16-bit RPG aesthetic meets modern indie art, industrious atmosphere of subterranean gem harvesters, color palette of deep stone gray, warm amber lantern, soft violet crystal glow and dusty brown leather, detailed pixel art cart and gem icons floating