I have watched the video several times, really good stuff.
I can't say I can recall ever having seen that garden line featured in the G1MRA journal during my membership, which is surprising as I think it is one of the nicest garden lines I have ever seen.
It is very artfully integrated into the garden and the bridge structures are magnificent, the mixture of ground level and raised track bed is attractive and the ground level and close up shots are very impressive. I also like the fact that it is single track and although it has mixed gauge and is hardly "finescale" the track construction with individual chairs and wooden sleepers all laid into stone has a "truth" about it which is really pleasing.
The on board shots were a brilliant idea too, thank you very much for shooting and sharing!
Simon