I think what can make it better is if you have no more white, no more grey, and no more shiny/glittery/metal/mirror.
There's a lot of white - windows, ceiling, woodwork, table top.
Everything else is grey and shiny. The carpet has glitter, the mirror legs, the velvet on the chairs.
You need to have contrast now, not blend it all into one white grey mass, which I think is what's causing you to not like the overall look atm.
Hopefully the mirrored legs will pick up a bit of colour and not be so homogenous with the carpet if you deepen up the colour on the walls, add nice window blinds/curtains, and yes, add plants - lots of plants! - and natural materials.