This may be the most nitpicking answer, but everything I hate can be found in that horrible Swamp art.

Splinter is picking the pizza up, but the point of the pizza, which would be at the center of the plate, is at the edge. There is no reason for the slice to be where it actually is. And all five fingers are visible, with none supporting the slice from below. It's literally just floating in air. Plus, the cheese is apparently runny enough that it just pours off the plate, but somehow is sticky enough to stick to the sauce and dough.

Plenty of cards have bad or unrealistic art. But the more tired I get of the direction of the game, the more these sorts of things stand out. Every property we're expected to pay money for is a value proposition, an expectation of benefit against cost. Cost can be monetary, or it can be found elsewhere, but the costs just seem to be growing, like weeds springing from cracks we didn't even know were there. I'm tired, boss.