"I originally wanted to include some ears of corn, but decided to cut it."
The center of his flowers are a very bright red -- real sunflowers tend to be a dark reddish-brown -- and the yellows are washed out by comparison. But hey, that's why he's a genius artist and we're just a bunch of dickheads. Those oddball choices are what separate true artists from the rest of us (and sometimes from their own ears). But here's the thing: Show that painting to someone who has a specific type of color-blindness -- the kind that keeps them from seeing red very well -- and they'll say, "Unusual coloration? Looks pretty realistic to me." That's because they're seeing this:
So, basically reverse Zack Snyder.
See, it has been long rumored that Van Gogh was color-blind, for this very reason. So designer Kazunori Asada ran all of the artist's paintings through a lighting filter to see how they would have looked to the artist if he was as color-blind as the theory goes. And what you find is that the odd color choices may have been accidents due to the poor bastard being unable to perceive them. He just didn't know the pigment he'd mixed up was that red.
Look, he's not saying the paintings are better this way, but they're definitely more muted and realistic. Here's another one -- first the original, as Van Gogh painted it:
Sharp black lines like a comic book, surrounding inexplicable green in the tree trunks. And now, here's what a color-blind Van Gogh would have seen: