Hi!
Thank you for your kind words again 🙂
Well, WordPress does not have an ‘official’ method of storing term images, usually plugins are being used for this purpose. Some of these are natively supported by the search, but it is painful to maintain all of that. I hope WordPress decides to add a native method to store images with terms in the future.
Anyways, getting those images should be possible with a small custom code snipped. Can you please tell me what the meta key is, and if it stores the image URL or the image attachment ID? With that, I could construct a small script that will fill those images during the post-process.