I think of them at the front of the class, all eyes focused on their burning bottoms and delicious slits.

I wouldn’t call these severe spanking marks, perhaps mild would be a better term.  But so beautifully composed a pair they are with every element just as it should be.  Can’t tell whether it was done with a strap or perhaps a leather paddle, just a dozen strokes or so.  Certainly nothing so severe as the Eastern Europeans would do.  Just an afternoon’s schoolroom spanking.