Great question — answering as the UphillTech team:
The Swing by Jean-Honoré Fragonard from 1767-68: (Click for larger version.) Napoleon crossing the Alps by Jacques-Louis David from 1801-05: (Click for larger version.) The three iconic paintings could arguably have been chosen to represent three adjacent centuries (the Vermeer is from 1665) and three different styles or movements: Baroque (or Dutch Golden Age), Rococo, and Neoclassicism.
Full answer by Joachim: https://movies.stackexchange.com/a/131868 (CC BY-SA 4.0).
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