Maybe walls and drop ceiling could be painted in a vibrant accent color instead of more beige. Stripes are usually formal, more casual if not the same size. Chic could be achieved with silver and beige stripes - wide and horizontal. Here is an idea book on stripes and one on how to DIY. https://www.houzz.com/magazine/the-case-for-striped-walls-stsetivw-vs~225887 https://www.houzz.com/magazine/how-to-paint-perfect-wall-stripes-stsetivw-vs~3427677

I think a comfortable distance between the island and the counter is around 42". It seems that you have only 30" between your cook top and the counter. I might be a little too tight. The wall between the entrance and the kitchen could be 4' long instead of 6', you would then be able to move the island a foot which would give you more room between the cook top and the island. Could you switch the location of the toilet and vanity in your dad's bathroom so your enter facing a vanity instead of a toilet which is a lot nicer.

I think I am certainly quite late to reply on this post but nevertheless will put my suggestions here. Go for 2 loveseats in a light/neutral colour against the 7 ft and 15 ft wall. Opposite the 15 ft wall you could put a nice upholstered bench in contrast/printed fabric. Also for a warm glow put a nice standing lamp in the corner between both sofas. You can place a nice mirror on the TV wall and put a nice shelf beneath it and place a lamp there with few knick knacks if the door opens outside in the balcony or is sliding. Also, keep two upholstered ottomans below the mirror which can be pulled for extra seating when required. Place a low height coffee table small one like a 2x2 ft.

so much clutter on tv panel. keep minimal on tv panel. get glass door for puja cabinet. remove all the wall photos. put sheer curtains.. white curtains would make the room look as bigger. swap dining with sofa and