Rithvik, Yes, people do use duco paint on HDHMR surface directly and it is indeed a good smooth surface for Duco. Having said that, a disclaimer is that we don't use HDHMR on our projects due to reservations on its longevity. Thanks, Nitin Cornerstone Designs Bangalore

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

do you have the interior designing and finishes finalized? as I mentioned earlier, everything in the room has to be tied together. I cannot give you a colour for the arch if it is going to clash with the window frame job, or the cabinets or the wood. In case you don't, I can help you with that. we offer consulting services, which is basically this, the help on Houzz, in a lot more detail. If you are interested, please connect with me on 9921364291 miloni The Yellow Cushion

You can start by refreshing the colour of the facade. In case you want to give it a more eye catching look, you would need to hire a professional. We can help you out with this while sticking to your budget as well. Please contact us at 9988866472 for details. Thanks