Answer:
According to history, Princess Bhrikuti was married to Emperor Songtsan Gampo in around 638 CE due to the very close relationship of Nepal with Tibet. As a part of the Dowry, Princess Bhrukuti brought Buddha statues of Shakyamuni Buddha statues which were the inspiration by Tibetan Buddha statues in Tibet. Most of the Tibetan Buddha statues are quite similar to Nepali Buddha statues due to various reasons, such as the influence of Newar Buddhist craftsmen who were brought by Princess Bhrikuti as a part of the dowry and another reason would be the influence of Buddha statues of Shakyamuni Buddha. Princess Bhrikuti even brought many Buddhist sculptures from Nepal.
Explanation:
On a video Instruction on EDG2023