The Celestial Biome of Whispering Leaves A suspended atrium, where gilded vines stretch towards a luminous aurora, shifting in color from deep emerald to warm amber as they sway in the artificial gravity. Massive, planet-like terrariums, filled with miniature cloud forests, hover within a framework of twisting brass and translucent stone pillars, creating an endless labyrinth of greenery and starlight. The floor is a soft, living carpet of blue-green moss and crystalized ferns, pulsing in sync with an unseen celestial heartbeat. The scent of ancient cedarwood, lavender fog, and hints of cardamom fills the air as faint echoes of deep-space whalesong ripple through the biosphere.