Complex sentence: Balinese influences can be seen in its performers' costumes (which remind one of Arja costumes) and instruments, meanwhile Javanese influences is in its "lakon" or stories as well as language in dialogues.
Split into simpler sentences: Balinese influences can be seen in its performers' costumes and instruments. Meanwhile Javanese influences is in its "lakon" or stories as well as language in dialogues.