A few comments on what would appear to be a wonderful model.
1. Your listing of amendments on the release of these latest pictures failed to mention that the painting of the fire-iron tunnel should be green. This was pointed out by others during the earlier discussion at Christmas.
2. The G crest W on the tender and lining of 7818 is questionable. HMRS's 'Great Western Way' p39 specifically states "Only Kings, Counties, Castles, Stars ,Saints and Halls (not Manors or Granges in GWR days) were lined after 1922". Some doubt might be cast on this as GWRJ Vol 7 refers to "only named engines being lined". Of course it could be a case of swapping tenders with a withdrawn Star or Saint. There is a least one photo of a fully lined 3,500 gallon tender.
3. As I pointed out at Christmas I feel the BR lining to be too heavy and bright. GW and BR lining was 1/8" orange 1/2" green. 1" black, 1/2" green. 1/8" orange. (GWW p25 & 68The only difference between GW and BR being the change from Middle Chrome Green to Brunswick.
I do however look forward to receiving those that I ordered so many months ago