Its your house if you like it you do it
I have bright colours in some of my rooms but my kitchen diner [ I flatter my terrace house no end with this description] has no natural light – I blocked it off to make the internal bike shed…priorities and all that… and it has to be painted bright or it is just dark and dull
personally not a fan of feature walls but I do have feature art work painted on a number of walls [ Mrs JY is an artist though so that helps]
Its not to everyone tastes though but hey they dont live here and it can all be painted over easily enough.
Just taling a wee break from the DIY
I also agree with trying to keep it style with your property and IMHO those feature walls and other such trends will look as data as the crazy crap folk did in the 70’s and 80’s
Keep it simple and pick what you like.
FWIW bare floors are great but cold [ as in temperature] but save me ruining carpets with muddy bikes and me.
Check your floorboards as well mine are gash with a few gaps and some less than nice sawing to fit the central heating so it was never really an option.