Two things, but essentially, one thing: the Chinese translation. First, the wording. In Ancient China we don't emphasise the "中國" concept, which only means "Middle Country" at that time and contained only geographical definition, much like "Italy" was before being unified as a national state during the 1840s, rather they called themselves "The subject of the Great Tang/Song/Yuan/Ming/Qing Dynasty" ("大唐/ 宋/明/清子民"), so if the Chinese really founded themselves a new country beyond the reach of China, they won't indicate their own geographical origin, but name themselves in a sense of localism(like the
the Lanfang Republic), and words like "阿拉伯", "聯合" and "大公國" are rather modern: Up to Tang Dynasty till the founding of the RoC, Arabia was being called "大食" (translated through the Persian name "Tazik") by Chinese, and the latter two ("united" and "principality")are just being used since the 20th century, and are really alien concepts to the ancient people who always lived under a unified empire where feudalism and disunity were greatly discouraged by official Confucian ethics. Second, the arrangement. In ancient times, Chinese writing were directed from right to left or from up to bottom, surprising similar to Arabic, as to follow the Yin-yang order, where right side and the top represents strong and bright, and left side and the bottom represents weak and darkness, and the former should be in front of the latter as a result, only after republican era was Chinese being reformed to have the left-to-right direction, because of the New Cultural Movement when the westernised intellectual aimed at defying any tradition and replaces it with western culture, thus the new writing direction which followed the European style.
And there are two thing I appreciated, which are the use of Traditional Chinese
and your concept of a Chinese empire outside the Central Realm
. Consider naming your country with features like the cultural origins from both the Chinese immigrants and the native peoples, and the geographical name of the territory, feel free to PM me for further advice.