Historic church building, stained glass windows, ornate wooden pews, vaulted ceilings, natural stone walls, energy-efficient lighting systems, solar panels, green roofs, rainwater harvesting, grey water reuse, low-flow plumbing fixtures, insulation upgrades, double-glazed windows, energy-recovery ventilation systems, geothermal heating, radiant floor heating, LED candles, occupancy sensors, timer-controlled lighting, clerestory windows, natural daylighting, soft warm lighting, shallow depth of field, 3/4 composition, realistic textures, ambient occlusion.