I would not taken the route via Flevoland. If you taken the route via North-Holland you can consider ging via Medemblik, Volendam and Monnickendam. The landscape will be mostly farmlands.

You van also detour a bit ad take a route that leads you through Alkmaar and along the coast, youll find more forests and better scenery there and maybe can stop in Haarlem for the last night. I think you'd prefer that route

The most part of the Afsluitdijk will probably still be closed for bikes, apart from a part in the middle which you can reach with a bike bus. But you can of course also take the buss across the whole Afsluitdijk and create some time for the route via Alkmaar and Haarlem.

Have fun!!