Beautiful floor! Which is unfortunately clashing with your existing style. To keep your wonderful antiques, I'd suggest removing the 'busy' elements.... and in bring a more neutral palette . Remove the throw over easychair (a neural one would look better), gold gilt frames, green cushions on the sofa, small area rug (leave the larger one). Try to pare it back to neutrals , then live with it for a while. Shouldn't cost a cent! The floor would have been cost enough - let it shine!
Then...look at what really needs to be changed.....I suspect the wallpaper may have to go at some stage...;((
See below forsuccessful examples of this (though not quite your style, you can get a good idea of how to make these seemingly clashing elements work). Best of luck!