Hey, thanks very much for the interest! I definitely agree that it needs custom graphics, the only reason it doesn't is because I have no graphical skills!
What you've done there is good, I'd happily add it if you can complete the set of fuses. Ideally it would have to include new icons as well. Don't worry about doing the 4 different orientations for each pole, I think for the fuse it is fine to have a single orientation.
For the other entities, the transformer would be pretty high priority (a better looking colour swap or adding something to make it distinct from the power switch would presumably be fairly doable, whereas a completely new model would be much harder). The high energy interface is only needed with certain overhaul mods, so isn't a priority. And the nexelit fuse is only needed with PyAE, which I can barely imagine anyone actually playing with Power Overload.
And then for the huge electric pole, it currently uses an old (non-HR) sprite from Factorio 0.16. Any improvements to this would have to come in the form of a brand new model (unless AI upscaling has improved since I last tried, which to be fair was 1.5 years ago so it probably has... feel free to give it a try).
Let me know your thoughts, and feel free to jump into my discord if you want more of a back-and-forth chat :)
