As a Dutchie I have visited this park a lot. This year I've been there 3 complete days, the last one being June 22nd (so I missed the latest rollercoaster). If you have questions, I am willing to try to answer them.
Efteling is a great park and has some very nice theming. Keep in mind that it's big and it's a lot of walking as the attractions sometime are a little distance from each other.
About the attractions you mentioned here are my thoughts:
The Flying Dutchman - it looks great but it's a bit of a letdown. I like to ride it, but the ride is short. There's a short part indoors in which not much happens. Just some fog trying to create a dark atmoshpere. The best part is when you are "in hell" , the part just before you are shot and arrive outdoors.
The queue can be very long and irritating when it's busy because it's dark and it's a queue full of small chambers. Each time you almost leave the chamber and you think you're finally there, it's another waiting room. Specially the first time.
Joris en de draak (duel dragon rollercoaster) is very nice and a fun ride. You see the big dragon on that picture very quick flashing by and it spits fire.
Droomvlucht / Dreamflight is very nice. There's so much going on in the scenes that you definately have to see it multiple times to get a good idea of it.
Fata Morgana, the eastern ride, is also very fun. You can compare it with Pirates of the Caribbean, but then in the settings of 1000 and 1 nights. I relaly love the big Djin in this show.
Fairy tale forest is great. Just amazing. When I was a small kid I was already taken back with this magical place. Though many adults consider this part to be for small children, I just love it.
Baron 1898, the latest coaster which I missed, should be something like Bush Gardens's Sheikra or Griffon, but not that tall. Griffon is 62m high where Baron is 30m if I recall correctly.
During my last visit I've taken a lot of photographs. If you like to see some photographs of some attractions, then tell me which ones. I think I spend 2 hours of photographing in the fairy tale forest.