Well, this entire thread is about personal taste - not measured speaker performance.
I do detest natural wood colors in general (not one single piece of that in my living environment) and I find black speakers boring.
By natural wood "colors" do you mean...like...browns? Or do you mean you detest wood finishes on a speaker?
I think wood finishes can look cheesy if it's not well done. I like a mixture of contemporary and wood materials done with a high quality of fit and finish. I like the sense of aesthetic "warmth" added by organic materials like wood. So I like wood somewhere on a speaker, but not a speaker that just looks like a wood box. (Examples would be speakers I own, naturally, but also the larger Focal speakers do a nice mix of gorgeous wood on the sides and whatever-that-shinier-material-is on the fronts).
I agree KEFs are one of the more distinct and cooler looking brands out there as far as the LS50 and Blade speakers (though I find the LS50 a bit plasticy looking).
For their other more traditional floor standing speakers like the reference speakers, I'm sort of undecided. Sometimes I think they look pretty subtle and contemporary, but sort of in a behind the times way, like what "eye catching" looked like back in the 90's or 2,000s.
I also find the B&W D series speakers look significantly higher quality in construction and finishes (even if divisive in aesthetics). They look like a lot of work go in to the speaker where the KEF look like they can be a bit more knocked off in China.
But that's nit-picking because I think KEF is still better looking than a lot of speaker brands.