This is Souvenir Of Loch Lomond, by the French artist Gustave Dore, painted in 1875.
A bit of a fuzzy shot, but I wanted a look at one of the galleries. This does the trick, and this space is dominated by that portrait at the far end.
This portrait is by John Watson Gordon, and depicts George Ramsay, 9th Earl of Dalhousie, a British veteran of the Napoleonic wars who served as Governor In Chief of British North America from 1820-29.
And this one, Tomb Of General Brock, Queenston Heights, Ontario, is by the American painter Thomas Cole. The British hero of the War of 1812, killed at the battle here, is entombed beneath the Memorial. This painting, from 1830, depicts the first monument; the present structure at the site was constructed in the 1850s.