Pretty sure they’re power leads, certainly the one going to the the point with the red cap next to washer filler is because that’s the positive jump start. There’s a couple others under there also but most will be power related.
I have never played „Spot The Ball“ but I am sure that your pic would merit a challenging punt at guessing where it is!
I would have said „battery supply cable from the power distribution box to the underbonnet Plus+ pole“ as well. The elusive cable is so wee, we Canae see it.