Sir you can use Wooden textured ACP as it will be cost effective solution to cover Soil pipes and provide a modern look to facade .

I can see a dresser area outside the bathroom in the floor plan and a separate wardrobe area as well. You can make an exclusive wardrobe and dresser area for your daughter just outside the bathroom. The wardrobe space can accomadate a long study table with wall mount bookshelf and a mix of open and closed storage. On the same wall you can make a sleek wardrobe for your son. Trundle beds are also quite in these days, you can place a trundle instead of a regular bed. Place the bed against the same wall as shown in the floor plan but tucked away in the corner. On the opposite wall you can get a nice kid friendly theme on the wall and create a small seating. Use all white furniture and add pops of colour through curtains and bedding

Surbhi, The width of the room is not mentioned here but from the scale it looks like it is ~8 ft. Effective living area would be close to 90-100 sqft . Grey and darker blue may not a be a suitable palette for this area. However, the tiling is already done. You may want to go for lighter shades for the remaining areas like wall paint (try 8260 Asian paints) and maybe brighter contrasts for sofa and curtains. Bright pastel yellow or beige may be a good combination for upholstery. Thanks, Nitin CORNERSTONE DESIGNS, Bangalore

Hello , Since you have a beige marble flooring, you can opt for a colour scheme that adds a pop of colour to your space. For example, the green and grey colour scheme or the green and taupe colour scheme will look good on a beige flooring, there is also the neutral earth tone colour scheme which has the combination of wine and taupe colour and lastly there is the earth tone colour scheme which consist of golden wheat/ burnt orange colour, These would add a pop of colour to your space and make it look chic