Rough Itinerary for 3 weeks in Indonesia - Thoughts?

I want peoples opinion of this itinerary (also in case someone wishes to join me) to let me know how feasible/rushed it will be and what you would maybe do different.

December 17th - Arrive in Jakarta
December 18th - Depart by air, Jakarta for Pangkalan Bun (Borneo)
December 19th to 21st - Boat tour with Orangutan Tours with 3days/2 nights
December 22nd - Depart by air, Pangkalan Bun to Muame (is this possible? via, say Jakarta? could I do it in 1 day?)
December 23 - 29th - Komodo National Park/Kanawa Island
December 30th - January 7th - Bali

In terms of what I am looking for, in order of priority is, a) Orangutans (rationale for Borneo), b) natural beauty (Bali/Komodo NP/Kanawa), c) culture (Bali), and d) a few days lazing on the beach (Kanawa Island/Bali)

If you could do it differently (or more efficiently), how would you do it? Would you do something different (say, go somewhere more interesting/beautiful/cultural)? Is it too rushed? Do I need to be more cynical about flights arriving/departing on time?