After reinstalling my Ankidroid on my new phone I synced and realised that the images are not loading.
I followed the instructions here FAQ · ankidroid/Anki-Android Wiki · GitHub
where I realised that images are not loading on Ankiweb either.
If they don’t show on AnkiWeb, they were likely never uploaded to AnkiWeb from your old device, or you allowed your account to expire by not using it. If that’s the case, I’m afraid there’s no way to restore them unless you still have them on the old device.