Okay first no dark colors second for your bathroom floor use a tile but make sure it has texture to it for safety theres some new 5x12 rectangle at home depot and make sure to use a top brand sealer

This is the kitchen plan

Thanks everyone, I'm planning to get my floor tiled up soon, and then later the whitewash. So before all that, I wanna do away with the construction part, if required to transform this hideous corner. I had the roller blinds in my mind to hide these iron windows, but I will also look at options for changing them windows entirely if budgets allow. I might have to use some false ceiling work as well. Posters, I don't think can find space here, but a lounger sofa-bed is a surething with some nice lights. Please do share some pictures of the lights and loungers and floor tiles if you may, for suggestion. I'll be obliged. Thanks again!

Thanks for both of your responses CUBSpaces team and Shweta from Shades studio. It really gives a clarity about possible consequences. I am now doubt free about changing whole things in Bathroom as it will be interconnected. However will appreciate your opinion on few things: 1. Kitchen wall tiles: I have those from countertop height to roof(almost area of 6X15 feet) which are good and not hollow. I changed countertop 5 years back without any damage to these tiles. It might cost me another 10-15 K, but I feel the whole process and quantity of wasting old good tiles makes me little sad. 2. kitchen countertop: Made new around 5 years back. I don't expect to get it all intact. But large pieces can be cut and can be used as top for other freestanding structures like dishwasher, front load washer, heighten base cabinets, etc. 3. Plywood: I don't mind giving enough labour charges for old sheets recycle. I am planning to use doors, loose sheets(like kept on bed frame of settee frame.) or parts of big frames like settee. I am keen on reducing waste than to save money. You can see various DIY ideas by western people, who remove or sand laminates and re-paint furniture, or carefully remove hollow tiles and re-attach them. Some are also re-painting ceramic tiles. I am just asking myself: Are we creating more and more waste by use and throw approach every 10-15 years, just because we can afford it?