The first one, from the left, is Yu (cancer), 2. Li Eon You (Taurus), 3. Jing Shengxi (Aquarius), 4. Don't think about it, it's Yuan (Cancer) and No.5.. Yin Zhenghe (Aries).
Part II 1. Yun Xiangtai (Sagittarius), 2. Sheng Chen You (Gemini), 3. Li Xiuzhe (Pisces), 4. Yoshinoya Ikeno (virgin).
The third part is 1. Jing Silverstream, 2. Gold (lion), 3. Muxiachuan (Scorpio), 4. Gangwon battery (Capricorn)
Official website only said Jin, Yu, Yin Zhenghe, Li Xiuzhe and the host, but others didn't explain, so others were purely personal opinions.