Exterior villa colors MODERN

In the process of building a house which is under contstruction.. design is finalised however need to decide on the colors combinations .. willing to select travertine wether white or beige.. and cladding to be in diff color .. hence seeking expert opinion on how to match the colors in a way that the house will look perfect

Attaching current pic / not realy satisfied with the wood brown colors on the right end wnd left side

Let me know if layout is also required