It’s actually the right picture both times.

From Wikipedia (this is 2nd Century but it’s the same kind of bullshit)

“Later in 149 BC a large Roman army landed at Utica in North Africa. The Carthaginians hoped to appease the Romans, but despite the Carthaginians surrendering all of their weapons, the Romans pressed on to besiege the city of Carthage. The Roman campaign suffered repeated setbacks through 149 BC, only alleviated by Scipio Aemilianus, a middle-ranking officer, distinguishing himself several times. A new Roman commander took over in 148 BC and fared equally badly.”

The Romans got repeatedly ass blasted by a Carthaginian army that had surrendered all their weapons

Absolutely clownish villain behavior from Rome in the whole Third Punic War that only got reversed when Scipio took over.

Tl;Dr nepotistic command structures of the Roman military meant the way they won most of the wars before the Marian reforms (and even after, arguably) was by getting armies killed until someone competent accidentally took over. Unlike all of their opponents, Rome could afford to lose and replace their field armies until they randomly got lucky/the enemy ran out of soldiers.