Sorry if my following remarks drag this off topic somewhat or have been adequately addressed elsewhere on RMWeb but to my relatively untrained (sorry for the pun - couldn't resist) eye, all of these A4s look superb, only spoiled in my eyes by the disproportionate size and whiteness of the headlamps which I also find glaringly obvious in all model railway magazine photos etc. where headlamps are fitted. Whilst it is imperative I think we would all agree to add correct head lamp codes to your layout trains, the size and whiteness is not realistic IMHO. There is surely a market for scale size lamps, admittedly the lamp handles themselves may be difficult to replicate to scale (is it this that makes them look disproportionately huge?). If you look at 1950s/1960s photos, even in colour, the headlamps are as not glaringly obvious as modelled currently.
Just a thought.
Regards,
(edited to sound less like a rant)