Wow! Those images are fascinating - thank you for sharing them!
Some quick thoughts:
1. Those Virgin ECML proposals are so ludicrously fanciful that I'm baffled that they appear to have been taken seriously by the rail press. Even by the hype standards of early privatisation, a 220mph-capable ECML is way out there. Surely that wasn't the basis of Virgin's actual bid for ICEC?
2. Looking at those old RAIL issues, I'm really struck by how much the mood music around the railways has soured in recent years. Even five years ago I remember a sense that the railways were booming and on the up. Between the HS2 debacle, years of strikes, discussion around modern ironing board seats, delays with GBR, and the financial vice-grip of the Treasury, the sense of a railway with a bright future seems to have ebbed away completely.
3. The proposed HS2 carriage interiors are deeply disappointing. Nothing about that render evokes any sense of comfort, speed, or premium - it does not look like a desirable or premium product that will entice customers. If you're going to spend umpteen billions on a flagship high-speed intercity railway, why would you not try to make it look attractive? This is the most charmless, dull, sterile interior they could possibly have come up with. I really miss the commercial / product development nous that the likes of InterCity, GNER, Virgin, Serco Caledonian Sleeper etc might have brought to this kind of project. Nobody in DfT or any of its commercial/delivery spin-offs seems to understand that the rail business might be anything other than a bitterly regrettable distress purchase.