I feel partitions are not needed. You already have too much for the space. Adding a partition will shrink the space further. The simplistic solution, you do not wish to discard any furniture would be to paint all the walls in lighter pastles. And use some wall painting frames to highlight certain walls.

SK Shadab Khan contractor all interior work design

SK decoration

You need to install a wooden partition wall as a separation between living area and the kitchen. That would do the job without making the kitchen feel claustrophobic.