Do you really need an interior designer?  The cabinet maker measured the master bathroom wall and made the rendering below. I was brought in and made the rendering below it. Yes it is simple but has so much more style and it does not smack of grandma's home!

Rendering made by non design professional

You be the professionals can pinpoint the look and feel you are trying to achieve but might not know how to get.  I also saved my client money by using 1/2 slab quartz composite counter tops instead of full slab solid surface material. There are many resources that designers have that can help you save money and get results!