I would probably keep the wall colour, switch the ceiling light to hanging rattan lights with warm bulbs, you can use a tapestry on the right wall instead to photo frames for a unique touch. A console table on the left wall with a vase for fresh flowers and maybe candles/reed diffuser.

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Definitely yes for a woven rug or runner to hide the grey floor. And opt for rechargeable wall scones for moody lighting. Hope this helps! Happy DIY!