From Miniature to BIG

A lovely model, to be sure, I find it fascinating that even if this is a tank engine, it's still a pacific.

I initially thought it was in a GCR green, but the LNER lettering is suggesting an LNER green. I think the finish is a bit mat, but I can tell that this company has a lot of potential and I wouldn't mind getting one of these

Indeed, it is a big loco for a tank loco that's for sure.  As you mention these loco's were originally designed and built by the GNR and then taking into the LNER when they merged.  As you can see the loco number is very low and this may indicate that it was just after the merger and before the LNER loco's were changed to apple green (i.e. they just re-badged it).  I know the GNR model they have in the range is this same colour, but I preferred it to carry LNER markings as it fits in better with the range of models I have.  The finish is actually a very nice satin, the only reason it looks a bit flat is because I turned on the phone light to help with the picture capture.

Wow...a totally new company in this day and age? I must say that upon first look....they need more rivets

I don't think they are necessarily a totally new company, but apparently it is the first time they have dipped their toe in the OO gauge loco market.  Good point about rivets, except this model in reality had little rivets, instead it was a very smooth finish to the bodywork (the rivets are probably behind the casings lol)