Complex sentence: Angelia represented the Philippines at Miss Earth 2015 this December 5 which she won and was crowned by her predecessor Jamie Herrell, also from the Philippines it took place at Marx Halle, Vienna, Austria.
Split into simpler sentences: Angelia represented the Philippines at Miss Earth 2015 on December 5 which she won and was crowned by her predecessor Jamie Herrell also from the Philippines. It took place at Marx Halle, Vienna, Austria.