Interesting, NLR was flagged up last week on another forum and I couldn’t consolidate the details to Hackney Wick at the time.
However this does look a good bet, third rail gone, factory to the left still there but missing the extractors, bridges and station building etc and the shortish platform. The only thing is the curve behind the train looks much more severe in the picture, but this is probably an illusion.
Train also makes sense as a Liverpool Street to Cambridge / Kings Lynn service or a Norwich working. class 47 early Mk2s and an RMB......but how did it get to Liverpool St from there, no route. So we could be looking at an excursion or a train diverted into Kings Cross?
To précis the view we are looking east towards Stratford.