Oh, I had similar on the one and only time my mother entered by lovely new house.
'You haven't got enough furniture. You can see the walls'.
'You need to get some proper curtains on wires so they rest on the windowsills, not those shutter things'
'You want to get a cupboard in front of that gap by the sink, then you can pull it out of the way when you need something in that cupboard and put buckets and a bin behind. What do you want a dishwasher for? [random neighbour] has a dishwasher and she's so lazy I laughed because every time she wants something clean, she has to open it up and get things out instead of taking them off the drainer and windowsill'
'You don't need two bathrooms. Put a wardrobe in front of the shower and some wood over the toilet and you can put a bookcase on top'.
'You have to get some bookcases along that landing and behind the bedroom door in front of that radiator, the doorway's big enough for you to get through sideways'.
'Ugh. Flooring. Don't you know that you can buy some pieces of nice patterned carpet that won't show the dirt? You'll be hoovering and mopping all the time if you have a dirty floor'
'Ugh. Green. Why would you paint it green? It looks like you're in an Edwardian library with that horrible old furniture and that rough carpet on the stairs like a doormat. You can buy wood colour stuff in Argos, you know'.
'I hate open plan, if there's a fire, you'll burn to death. What you want is to put big curtains up to fill that gap'
'That settee's too low and horrible. You want a three piece suite in velour, then you can have a nice pink or orange floral one and it'll be really comfortable. You can get some pouffes to match as well, it'll be easy to walk around them to sit down'.
'That kettle's awful. You can get them in different colours'
'I don't like it. It's bare and smells of cleaning stuff. And you made me walk miles out of my way to get here from the second bus stop by a pedestrian crossing and with a level surface rather than saving 3 foot three and a half inches according to Google maps by running across the main road and leaping up a high kerb by a bus stop'
I booked her a cab home and she never came back.