Complex sentence: In 2000, she received a Bachelor's Degree from Tama Art University in Tokyo, and, soon after, became an assistant for leading Japanese Contemporary Artist Takashi Murakami, who became her first mentor and jump started her career.
Split into simpler sentences: In 2000, she received a Bachelor's Degree from Tama Art University in Tokyo. Soon after, she became an assistant for leading Japanese Contemporary Artist Takashi Murakami, who became Takano's first mentor and jump started her career.