That's slop. It's the most convincing to be sure.

The pieces that are supposed to look like they have brush strokes all have bizarre looking strokes. Bottom right Santa has weird fuzzy strokes that would not be possible with a brush, and that digital art programs really try to prevent you from doing.

The teddy bear and the white puff of his jacket would be done with a randomized splatter brush, and that's clearly the look the AI was trying to copy but didn't get it quite right.

A lot of it is hiding in the fact that this is just bad artwork. The kind of thing a graphic design student might pump out in an afternoon for a quick paycheck. So instead of that kid being able to afford pizza this week, the dollar store saved 100 bucks on this crap.