There is contrast between the traditional furniture and the focal point of the floor which pops, draws attention. I would recover the sofas in cream colored soft fabric - suede. I would leave the curtains grey, and put down a large neutral area rug. The edges of the room would show the pattern of the floor. I would color the wall and add texture to it, but not too dark as the room will appear smaller. Add a picture and put a nice plant holder, large vase in the left corner of the room - an oriental-style vase. Or, a cream-stripe fabric on the sofas. You could go soft or bold in this room - depending on your taste.

How do I stain and seal it? Has already been prepped for duco :(

Maximize the space under your staircase with smart storage solutions! Install shelves, cabinets, or drawers for an organized look. Create a cozy reading nook, a mini home office, or even a pet-friendly corner. With creativity, this often-overlooked area can become a stylish and functional part of your home!

that is what i have added if you can see the pic above.. want some suggestions on partition that i can use between dining and sitting