Claude Monet - Subtle contrast between red and green, and creation of green out of grays using relative colors, mid tone through drastic high and low temperature balance, canvas shape allows a lot of background with a close foreground.
Auguste Renoir I selected this portrait for the expression on his face. His eyes are very soulful. Renoir is wearing his coat and hat -- this portrait seems very proper and speaks of etiquette from a bygone era.
Day 5 (free time): Musee d' Orsay, the place I'd most like to go during free time. One of the best places on Earth to see impressionist works. Pierre-Auguste Renoir: Bal du moulin de la Galette (Dance at Le Moulin de la Galette) Musée d'Orsay in Paris.