This is how the charge ended: a staff officer present at the scene later wrote - 'Our men were out of hand. Every officer within hearing exerted themselves to the utmost to reform the men; but the helplessness of the enemy offered too great a temptation to the Dragoons, and our efforts were abortive. It was evident that [the French] reserves of cavalry would soon take advantage of our disorder.....we could effect no formation, and were as helpless against their attack as their infantry had been against ours. Everyone saw what must happen. Those whose horses were best, or least blown, got away. [Most of the rest] fell into the hands of the enemy..It was in this part of the transaction that almost the whole of the loss of the Brigade took place.' (quoted in Keegan: The Face of Battle)

Does this military disaster (what would happen after this moment)invalidate the painting?