keep the architecture lighting and stained glass illumination exactly as shown add polished wooden pews arranged symmetrically along the nave axis all facing the altar render the altar platform and liturgical furnishings in bright polished white marble appropriate for roman catholic worship add a crucifix with jesus on the cross positioned at the altar wall or suspended above the altar illuminated by the stained glass glow on the angled concrete brick walls add subtle roman catholic detailing such as small inset crosses shallow relief patterns or liturgical motifs but do not modify the geometry or proportions of the walls populate the pews with worshipers oriented toward the altar add a choir in the upper balcony levels with natural variety in appearance but keep all architectural elements exactly as shown maintain the bright heavenly stained glass light and the sacred uplifting atmosphere of the space
