Presbyterian windows

Popped into our local Presbyterian church today - not for the Easter service, but to check it out as a possible concert room. It's a lot bigger than it looks from outside, easily holding 250 people and I'm willing to believe the acoustic is as good as I've been told. The pulpit takes up a bit of space of course...
Presbyterians have never gone in much for the Victorian excesses that some other denominations have favoured, so the windows are tasteful and discreet, with the merest hint of colour. I much prefer these to some of the more flamboyant examples of church window art, spectacular though they often are.
It's an added pleasure, when singing in the choir, to be able to see the trees moving outside the window.