FOLLY: I don't know where you can get this in a restaurant setting but if you'd be willing to buy the components. You get order Apple pie from Honey's Cupcakes and pair with your favourite brand of Ice-Cream.
FOLLY: On the mainland, Orchid Bistro will definitely be quiet serene and cozy.
NOSA: Truffles might work for you. I didn't have the best experience there, but I ordered a salad so take with a pinch of salt. The fillet wasn't bad.
FOLLY: Your budget might not give you a 3 course meal for 15 people at most restaurants, unless you're not including dessert and are serving your birthday cake as dessert. You can definitely get starters for the table to share and main courses at 8k per head (i.e. if you have only 10 people).
NOSA: 80k is about 8k/head so you're not going to get any 3 course meal at any restaurant. Best bet is a buffet and at that price point, only Four Points or Wheatbaker are decent options. Four Points has the better view so you can go with that.
Or BLD, but that place is shit and idk why you would do that.
FOLLY: Hey Sxxxx thanks for reading our blog!
For your birthday dinner, I think you should definitely do NOK by Alara. At 80 the budget will be VERY tight and you won't get more than one course but you may be able to make it work.
NOSA: Your budget is a little light for what you want. 5-7k with drinks? Slim pickings here. You can go to Taverna and you can get pasta mains and a gin+tonic or spilt a couple bottles of wine amongst yourselves.