silneondoré, A monumental hourglass tilts inside a circular navigation chamber, with a thin stream of luminous sand crossing the narrow waist. A technician stands on a side platform beside the lower bulb. Incandescent orange shines through the moving grains while spectral blue defines the glass, metal supports and distant walls. Fine engraving describes reflections, transparent overlaps and sand accumulation, retaining separate inner and outer glass contours and believable supporting brackets. Use only these two neon color families, near-black and near-white.