It doesn't matter when Jap artists are auctioned off to work on these adaptations, for who knows how low of a wage.
I should one day do a proper research into this, but I really won't be surprised if every artist has like 3-5 projects they're contracted to work on, so they don't even care "how good" it looks or not.
I guess it slipped by because of how transparent the layer is, so the editor must have thought it was an effect for the magic and didn't ask the mangaka to correct.
Ah, so that's why the drama here seems a bit overblown.
Well, drama is all well and good, but I'm curious about that whole "Daughter of God" thing. They just dropped that onto our heads and then absolutely nothing for the next few chapters afterward.