I would choose black.

Black for me.

I think that is one busy looking exterior so if you have bronze somehwere in that mix then use it but if not go black at least it ties into the solar panels .THis is a real issue of less is more so keep the fence as simple as possible

From a distance no one will be able to tell if it is bronze or black! Black is the safer choice.

If this helps - here's a page with aluminum fence colors - There's a photo with a black and bronze fence panel next to each other. Some brands have a brown color along with bronze. Take a photo of your yard - and have a photo of the fence style you like - put them in chat gpt and ask to add the fence to your yard in both black and then bronze - that might help to visualize it better. Good Luck!