Those look absolutely fantastic!
Good to see the (absolutely) correct shade of brown rather than the oft-seen unrealistically reddish which seems to appear quite often these days.
When I started modelling (about 1969!) in order to achieve anything Irish simply meant repainting a BR class 33 in orange and black, or a "Hymek" in NIR maroon; and repainting BR Mk. 1's in orange / black or maroon / blue. Wagons....forget it.
Now, we see purpose built locomotives and carriages forst and foremost. But freight vehicles on so many otherwise excellent layouts are still in 1970s mode, with (what seems to be) most goods trains on most layouts consisting of repainted (or not even repainted) standard BR stuff from messrs Hornby, Dapol or Bachmann. This is partly due to a lesser level of knowledge among most enthusiasts about non passenger vehicles, but mostly to the almost total lack of anything prototypical until very recent years.
Now we have Leslie's stiff as well as the above; we have Irish Freight Models and many others who are producing absolutely superb stuff, and it has to be said at financial risk to themselves in covering costs. We see the result: greater accuracy.
In the past, a purist might have scoffed at a crudely repainted BR "33" hauling BR Mk 1's in hand-painted CIE livery - but there were no other options.
Now we see Mayner's carriages, those of Worsley and others, as well as the mighty Murphy stuff, with scale UGs, 141s, 121s, 201s, etc etc etc, but in the adjacent siding British Rail banana vans with CIE logos, "sharks", "walruses" and whatever sit awaiting their 141. No other options until now, but here we go!
Hats off to Glenderg & Co, but not forgetting those others who are pioneering the final stage in a process which will make reversion to non-Irish types unnecessary. You all deserve our fullest support.