I’m afraid I really dislike all white, it is just so stark and cold irrelevant of what’s in the room giving it thr “pop” of colour that some folks seem to think is a thing.
I also dislike a steel cold grey, lots of people do grey wrong, they go for one with a blue undertone, and there are lots of warm pale greys which can work in small doses. Beige and Magnolia the same, it all just shows a lack of flair.
mass produced cheap artwork, the sort you buy in next or dunelm, or get down the local charity shop. Same as trinkets like love heart or cat ornaments,
rugs that are too small for the space, if you’re going to have a rug then it needs to be warm and generous.
shiny brown leather sofas, they just suck the light out of the room
multi coloured houses, different bright colours in each room, each room should differ but it should flow.
fake panelling in a modern house, it’s ludicrous and fooling no one
lack of soft lighting and only a harsh over head light.
tvs that are too big for the room or positioned wrongly Ie too high up the wall
cheap curtains that are short, particularly if they have tie backs. If you want short, get a blind.
Orange pine furniture.
the list goes on,,,😃