Check for saturation.  Could do this in ds9 old-school, or get fancy-old-school and use IRAF/imexamine and check via the 's' and 'e' and 'r' keys (3D, 2D, 1D).

Check for astrometry oddities.  Basically blink between images and look for offsets in point sources like stars.

Check the anchoring plots that are found in the anchoring diagnostic tarballs.  I think we can just note in the google sheet the amount of the offset.  Don't worry about the slop of the trend, just the offset.

Do the individual frames in the stitched-together mosaic look reasonably similar?  ie note if there are weird quilt-like signatures b/c the levels in adjacent mosaic pointings are offset.

Are there negative backgrounds?

You can check for things like this using extreme stretches on ds9 and ratio maps.  See the examples I posted on the team website.

Elias Oakes and Tony Weinbeck are doing QS for Paschen-alpha (F187N), so don't worry about those.