Quite a few of the rooms are less OTT than it first appears, as in once you've taken out the furniture, the walls and floor are reasonably neutral. It kind of looks like my gran's house, or LL from those 90s programmes.
Each to their own, but my estate agent says neutral is best for selling. If you're not, do your thing, and ignore the online articles saying maximillism is out, if you want.
I'm a millennial and don't want my home looking like a primary school/nursery, get me neutrals!