Hi Lena,
Nice design that's one big house!
Is the wrap-around verandah going to have the roof all the way to the end of it? If the roof does go to the end, will there be enough light coming into the living areas and rooms? I'm no designer, this might not be an issue at all!
Love the separate wash room - quite handy for use with the pool. One consideration is whether you need a separate powder room/toilet (next to cloak closet) if you already have a separate toilet in washroom? That's a lot of toilets to clean!
What about a window in master ensuite?
Why are there two doors to the entry into the verandah from alfresco?
Good luck finding a block of land. Have you started looking?