Depicted is the Battle of Trafalgar, the most decisive naval battle in the Third Coalition of the Napoleonic War. Admiral Lord Nelson led the British Navy against the combined forces of the Spanish and French. Instead of attacking in one long line of ships, parallel to the enemy, he sent his fleet in two lines, parallel to each other but perpendicular to the enemy. This allowed him to cut the enemy ships off from each other, circle around them, and finish them off. Britain won, although Nelson was mortally wounded.
This was a month-long project for my illustration class. We had to pick a historical event and do a two-page spread for it.
A larger view can be found at my deviantART account: http://cerebrumhabeo.deviantart.com/#/d2q1hq9 .