Originally Posted by Big Mac

Thanks for the input everyone.
This is my revised plan (an extra day at Amanjiwo instead of Amandari, or should I substitute Amanusa with Amandari as well?):
Day 1
TR2214 - SIN-JOG - 16:15-17:30
Amanjiwo
Day 2
Amanjiwo
Day 3
Amanjiwo
Day 4
GA252 - JOG-DPS - 16:15-18:35
Amankila
Day 5
Amankila
Day 6
Amankila
Day 7
Afternoon transfer to Amanusa
Day 8
Amanusa
Day of departure
SQ943 - DPS-SIN - 13:05-15:35

Thanks MikeFromTokyo. Stunning ocean views are my thing...
I think I will skip Amandari and instead add another day at Amanjiwo. I will take the early evening flight from Yogyakarta to Bali as well.
I will definitely look at a pool suite at Amanusa (you can't go to Bali without staying in a pool suite right...).