Happy to give my opinion, but need more info:

Who do you think your market will be ?
Europeans ? Specifically the British?

Will you be offering a rental scheme - so most buyers will be buying for rent ?
Or, will your buyers be buying mostly for a second home in the sun? and spending 2 weeks at a time here
or, A retirement home? and spending months at a time?

Will the owners be spending most of their time at the complex or will they be out most of the day and just returning to sleep?

What is the feel of your resort? Quiet, chilled, refined, natural, unspoilt or young, brash, loud, trendy?

What is the price difference between a luxury full spec property and a more basic one?

Should you go for something the same as other developments in the area or something different?