I'd say you've got a pretty good match in that photo
Our local line was electrified recently and whilst the masts etc are very different, the wiring connections look very similar and I don't think they bother with insulation on the connection wires. It looks like they just bend it to ensure the necessary air gap separation to avoid flash over and leave it at that.
In your situation I think I would add the feed wire for the transformer posts because they have that very obvious pair of insulators at the top - power arrives but where does it go? My guess is that the wire attaches to the top of catenary a few feet from the support boom. Other feed points are less obvious so few will miss them if they aren't there.
What I meant was, it's easy to see that the output from the transformer goes to the top of the post, so anyone seeing that would expect it to go somewhere and not just stop, so adding a wire from there to the catenary wire is necessary to complete the scene.
I think you've managed the backscene blending very well.
I will be interested to see how you get on with platform extensions for Schwarzburg as I have the same model and could do with another 12" or so. I have not found a Faller platform specifically for this kit but one of the platform range has Schwarzburg in the background of the promotional picture. The platform is nicely made and it would be a shame not to have a good match for the edging.
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