For comparison, here are some of the best previous images from this area of the sky:
https://archive.stsci.edu/prepds/relics/
https://archive.stsci.edu/prepds/relics/color_images/smacs07...
That's the best original source I've found so far. It's also unclear to me if these images are largely from Spitzer or Hubble or a combination of data from both.