Ok - this thing is happening. The construction on our new bathroom/WIC addition will begin in a few weeks. I have a little bit of which came first - the chicken or the egg dilemma. Or in my case - which do I choose first, the faucets, shower system, or counter, or lights?! Here is the layout:

Flooring is small hexagon tiles. And here is my big inspiration photo which is roughly the same layout. 3x5 walk in shower on one end and 3x5 toilet closet on the other:

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I've ordered this wall paper in blue and it is only being used on the wall with the vanity:

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So now comes the hard part. I need to select the shower system and faucets and lights. I'm having a hard time choosing. The metals have to match - correct? If the light fixtures are brass, the faucets should be brass, too, right? And then the hardware for the vanity also have to match? I would welcome some guiding design principles on what I should choose first and how that decision dominoes into others. Many thanks ahead of time!