Black and blue are the important ones, they’re the ones with the line voltage. From what I can see, they’re both OK, and they have wagos on them.
Under normal circumstances, the grounding wire (green/yellow) shouldn’t carry any voltage, but mistakes and faults happen. While you’ll most likely be fine just covering it as it is, I’d give that wire some treatment too: If you don’t have any wago clamps or similar, just snip off the exposed copper, and wrap some electrical tape around it just to be safe.
DISCLAIMER: I’m not in Australia Austria (I’m European Scandinavian), and I’m not a licensed electrician, let alone a licensed electrician in Australia Austria. I could be an internet terrorist who wants you to burn down your house for all you know.