Home Bathrooms What should I add in my home new bathrooms to give them a luxurious look?

What should I add in my home new bathrooms to give them a luxurious look?

I have bought 100×150 square feet space. Now I am making a two-floor house with six rooms in it, 3 rooms on both the floors with one kitchen and one bathroom. I have planned to use any luxurious theme that suits my budget and looks good as well. I have bought new silver color cupboards, mirrored dining table and dressing table. I have planned all the things for rooms of my house. But don’t know that what I should add in new bathrooms that does not cost me more and goes well with the luxurious themes of house. I don’t want shower, yes but badly want to add bathtub in my bathrooms. The size of bathroom is 15×10 square feet. My budget for both bathrooms is $500.