I'd suggest a different hanging system for the light. It just does not go well.
I agree - it actually looked very clean and 'fitting' when it was right on the tank, like a hood. Anyway to do that - or go with a heavy duty mount directly out from the wall into the back of the light?
You would lose your adjustablity, but you the lantern and stand look way to good together to hang that way. You did beautiful work but all is see is the hangers in that last pic.
It looks like your avoiding drilling into the ceiling so you chose the molding as attachment points instead.
Maybe try some heavy duty fishing line instead of the black cable. That way it won't be so visible and take away from the amazing light you made. It will look like it's floating above the tank or at least just blend in and be unnoticeable.
I rent my apartment and drilled holes into the ceiling. A hole isn't some crazy modification. I drilled two small holes and used butterfly anchors to suspend mine. When I move ill just putty up the holes and sand them. I have done this in two apartments without issues, just cover up the evidence when you move and you will get your security back no problem.
A bit of an update. I got my replacement power supply and wired everything up and it worked... very briefly. The light turned on but my enthusiasm was shortlived when I realized the drivers were smoking I guess that answers the question of whether or not I damaged them by initially connecting them in the wrong orientation.
The last driver wasn't smoking and seemed to work for about 15 minutes before it too gave up the ghost, but it was long enough for me to snap a quick pic.
Here's the lamp with just the warm white string fired up.
Replacement drivers have been ordered so hopefully I can get this thing running for real by the end of the week.