To be honest I think there are several issues apart from the pictures, IMHO that is. Firstly these speakers are not generally that well known, they are what I would class as a music/hifi Connoisseur speaker, so it important to get them out there so to speak where the right footprint will see them. Yes there are a few here on AoS who have pricey gear, but how many would or could out lay out £7k on a pair of speakers without some very serious thought I wonder, apart from Jerry maybe😂. Secondly and maybe more important is the physical size of them, I actually could live with them in my lounge, whether Sue would is another matter, I don’t think they are too big compared to some other speakers out there. So this will also limit the footfall that will be potential buyers.
So if it was me I would place an advert say in Hifi News for a couple of months, yes the risk is silly calls and dealers trying it on, but it should catch the serious buyer who knows what these are. Also as already pointed out better photos along with some stuff about provenance and specification would help.
Shame really they are just a step too far for me budget wise, they sound amazing and I heard a variety of Musial genres on them and thought they performed very well across the board. To be honest they are a superb price considering a new pair to the same spec are around £18k, someone needs to buy these and be happy forever.