I think the sectional is to big for the space.

Another picture of the rest of the space would be helpful. First thought....sectional is too big, need a different rug, bigger artwork and window treatments.

Good start. May we see photos of the rest of the space?

I would look for a smaller couch that isn't so bulky with legs so it opens up the space a bit. Also, if you used an end table rather than a coffee table it would open up the floor space a bit for traffic flow and working in the kitchen.