I'm oddly attracted to power lines, substations, and cabling too. We are an eccentric bunch. ... I think the second photo is the best of the set. It's sort of funny and menacing.
The last one is good but not as unique as the second.
I like the absence of treetops, clouds, and ground. It may be interesting to shoot at night using a strobe for a complimentary effect.
Stay with it.