I agree with Nod, indoor backgrounds and studio lights might be a bit pretentious for a bike like that, which is very nice BTW.TBH, I reckon that sort of background suits most bikes better than a plain one. Anyone who's interested in the bikes will either come to see it/them in person or ask for more detailed shots of the pertinent areas. Strategically placed piles of leaves might reduce the signs of incontinence that most bikes of that age show too!
Again, I agree with Nod. The best background for a "for sale" shot is an uncluttered one that doesn't compete for attention.Personally, I'd lose the signs and possibly even the bench so the bike stands out better. Many (?most!) elderly bikes are dark coloured so details will get lost against the dark bench. For "portraits" of the bikes, the bench would be a useful prop (once the modern stuff was cleared off it!) but as a background to "for sale" pics, less so. IMO, of course!
If you have a quick look at https://www.speedthrills.co.uk/ , you can see that they use a fairly plain background for their shots and they do quite well from them!
2nd shot works well.
Consider that Thruxton sold - I'll stick the tenner in the post on Monday!!!
Great minds...Unlike most of them, it's got (relatively!) high bars and gloss paint. I'd prefer a black one but could live with the grey and a set of cases is just over £400 including fitting.
Enjoy it as much as I would!!!