The only 'suspect' ones I can now suggest are the 'diesel engine' and 'driving / traffic' pictures.
Although, looking at it again, 'clock' clearly
isn't any of the clocks at Bristol Temple Meads ... and is 'single track'
actually the single track at Stapleton Road, or rather more generic?

Yep .. "Diesel Engine" was actually taken at Stapleton Road, although it refers to a train leaving Temple Meads, the "Single track" is actually the curve at Melksham (is the track that good on the Beach line?), and the clock is (!) at Hedge End from earlier this month. Traffic / driving are Melksham (so that's in order) and Cambridge (so I'm in line to get my knuckles severly wrapped on that one

)
I did think (later) of adding 'click to enlarge' but that would have taken an awful lot of time I didn't have to prepare all the images!