Yeah it's pretty creepy. The "heads" might not even be needed. It's just there to be more human-like.
I think a faction based around integrated alien tech sounds the most interesting to me. You could even base it off the real ancient chinese fangshi. "The fangshi (方士, literally "method masters" or "masters of recipes/techniques") were a fascinating class of technical and esoteric specialists in ancient China. Fangshi were highly skilled practitioners who combined elements of what we might today call: Alchemy Medicine and pharmacology Astrology and astronomy Divination and omen interpretation Physiognomy (reading faces or bodies for fate) Geomancy Exorcism and ritual magic Techniques for achieving longevity or immortality (becoming a xian 仙, a transcendent immortal) They were often wandering experts, mystics, or occult technicians from northern regions like Qi and Yan. Many operated outside mainstream Confucian scholarship, though some gained imperial favor. Their knowledge drew from shamanistic (wu) traditions but evolved into more systematic "methods" (fang). Over time, their practices heavily influenced early religious Daoism (Taoism), traditional Chinese medicine, and even proto-scientific fields like chemistry and pharmacology."
