What copybook does a 9-year-old girl choose when she first learns brush calligraphy?

Ou Yangxun's Jiucheng Palace, Yan Zhenqing's Yan's Diligence Monument and Liu Gongquan's Mystery Tower have all been regarded as the best since ancient times. Start with regular script, stand at attention, walk and rush. Calligraphy is not good even if it is well written, but gradually rises with age, opinion, knowledge and accomplishment.