safebooruhttps://safebooru.org/index.php?page=atom&tags=1girl alternate costume arms behind back blue sky closed mouth clouds commentary request contrail cumulonimbus cloud dated day empty eyes expressionless from behind green hair green sailor collar green skirt highres long hair looking at viewer looking back low ponytail one-hour drawing challenge outdoors railroad signal sailor collar sakamoto ahiru school uniform serafuku shirt short sleeves skirt sky solo voiceroid voicevox white shirt wide-eyed yellow eyes zundamon2024-05-21T00:13:05Zsafebooru