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.

It sounds more like a bedroom instead of a hall. If t's a bedroom, why do you need a sofa. What size is the room? How many doors and windows? Can you please show us some photos of the space, or a sketch with dimensions?

Hello Krishna, I would suggest to go for a white brick texture on the main wall with earthy shade of brown for the window shade. The side walls can be a offwhite or beige shade Trust this helps you . If it does will appreciate if you can write a good review on my page snsofdesign Thanks Smitha