This is a digital painting, using a colourful AOP in DAP, of HMS Warrior which was the first iron-hulled, armour-plated warship, built for the Royal Navy in response to the first ironclad, the French La Gloire, launched a year earlier.
Information is derived from Wikipedia and the original photograph used with the kind permission of photographer Bruce Turner.
When completed in October 1861, Warrior was by far the largest, fastest, most heavily armed and most heavily armoured warship the world had seen. She was almost twice the size of La Gloire and thoroughly outclassed the French ship in speed, armour, and gunnery.
Warrior did not introduce any radical new technology, but for the first time combined steam engines, rifled breech loading guns, iron construction, iron armour, and the propeller in one ship, and all built to an unprecedented scale.