Love that soapstone!

Could a linear drain work? I guess would still need the slope but at one end, not the center.

That ditra looks like it is ditraheat, which IS approved for use in a shower. It gets covered with kerdi. However, the kerdi needs to wrap up the wall to make a waterproof joint. I agree you have waterproofing issues, but it's not because of the ditraheat in and of itself, but rather it's the sum of all the parts that need to work together.

Michelle - have you asked your contractor how he has constructed your shower? IF he used plastic sheeting or tar paper (roofing felt) on the wall studs - behind the (cement board) - your shower walls have been waterproofed. Surface waterproof membranes are used much more often now (either a liquid one that is rolled on or something like a Schluter surface membrane which is like a “wallpaper“ ) to waterproof cement board (foam boards are also used by themselves - like GoBoard or Kerdiboard - they are waterproof).

It’s better to confirm now than find out later that he failed to add the waterproofing behind the Permabase.

As already pointed out by Hallett & Co above, the Permabase installed by your contractor is not the waterproof type (it actually has the word ”waterproof” underneath ”Permabase”):

The other two types of Permabase cement boards are ”moisture and mold resistant” - not ”waterproof”:

Don’t ask him if he installed the plastic sheeting or felt behind it - let him explain how he constructed it. Unless you’ve taken photos along the way, how will you be able to confirm that either the plastic or felt is behind the cement board at this point? It’s better to let him explain instead of asking if it’s there - too easy for him to tell you that it was installed.

Couldn’t add a photo to my previous comment but here is our leather finish Taj Mahal kitchen, used it for the island, perimeter, and also slab backsplash.

I'd try just one, either, and turn it to horizontal

hang, Nobody will know, and it will keep it from looking like you could have used another 18" of sofa length: )

I'm all for go big or stay home.....but. They overpower the space as a twosome and either is big and bold enough to BE alone

. Paul can give you a better mock up than this below