I love so many things, it's hard to choose. For today, I will stick to a small selection of paintings. Warning, some of these paintings are NSFW!

I really like Gustav Klimt, even though The Kiss has been copied, homaged and parodied to death, nearly beyond the realm of cliché, I think that his style is fascinating. I have never seen The Beethoven Frieze, 1902, but I would love the opportunity to. In particular because I want to see the panel depicting Lasciviousness in person, to get a real sense of the piece. There's something about it that's so weird and physical to me.

This is the panel I'm talking about:

And this is (I think) the entirety of the piece.

In general, I'm not a fan of Gustave Courbet, but I do like L'Origine du monde, 1866 not simply because my thinking is so often genitally oriented, but because I think it marked a real shift toward what would become the ideas of Modernist painting. Also, here is a smaller version.

My favorite van Gogh is this one titled, A crab on its back, 1889, because it's quite literally a "still life". Plus, most of his other paintings have to do with the quality of the sky (he was Dutch) and the outdoors and this one is very much not those things:

Henri-Edmond Cross's Les Iles d'Or, îles d'Hyères 1891-1892 is my favorite example of pointillism. Most people think of Seurat when they think of pointillism, but I think Cross's contributions are also very important:

My favorite impressionist painting is this one, by Claude Monet, called Impression, soleil levant, 1872: