simple_black_background, black and white theme, Sense of coordination, sense of order, mathematics beauty, (((cover design))), (((((cover art))))), ((trim)), album_art, official art, (Master's work), 1girl, full body, <lora:sgeleixiu-v100-000026:0.8:lbw=OUTALL>, gelei, 1girl, white dress, hat, blue hair, purple eyes, barefoot, little girl, 9 years old, chessboard, chess, white geometry, black geometry, reflection, crystal_art, pattern_design, creative, Mystery pattern, black crystal decorate, black crystal, (architectural art), ((geometric art)), pattern design, creative, ------, Low saturation, grand masterpiece, Perfect composition, film light, light art