This Blue Monochrome by Yves Klein just been Sold for €18.4 million at Auction. 💙😳 Thoughts ? The French artist Yves Klein sold for 18.4 million euros (more than $21 million) by the auction house Christie 📍 The most a Klein painting has ever sold for in France. Choose your Favorite ? (1-4) #blue #yvesklein #auction #monochrome