Yes, but it's too late.

Sorry, I don't mean to sound, well, mean but a room of all the exact same furniture is hard to work with. Easy to buy but hard to make look interesting and personal.

Start by picking a large piece of art for over the sofa instead of the cold mirror reflecting nothing but gray.

Think of inserting a little or a lot of another color or two into your home. The art will give you that opportunity.

Look for a couple of throws or see if pillows will stay on the sofas. Leather makes them slide right off.

In your wardrobe, what color do you like with a dark color [like the furniture]? In one way, that could be a guide.

I'd probably keep black on sofa so as not to darken the walls more. Here's just 1 of each idea:

Colorful Grid Patchwork Canvas Square Decorative Pillows · More Info

All one color furniture, room could stand this silvery frame, adding on gold touches.... are your sconces silvery?

"Its stormy blue hues subside into soft pastel tones such as the ocean calms as it approaches land. Accented with gold leaf and framed with a silver floater frame, this abstract is perfect for your beach inspired home."

Rising River Flow Framed Artwork · More Info

W 20" / H 40"

Let's say you decide no rug. Then amber-ish floor could have relation to art like this, which would sorta pop off the grey-ish paint.

"Your Arms Until Hell Do Us Part" Original Wall Art by Andressa Toni · More Info

Again art is slightly muted so might look good with floor -- I probably wouldn't have certain brights -- there'd be much contrasting with furniture.... 'mellow out' the sofas. :)

"Vibrant Colorful Abstract" Canvas Print By Irena Orlov, 36"x48" · More Info

Live plants

rug

Could you form the two sofas into an L shape with a wooden end table/lamp in between? Then relocate the table and ottoman to another room. You could then add a pretty fabric chair and a wooden coffee table.