I love the yellow! The sage-green is sublime. Isn't yellow challenging? When you said yellow, I initially thought, "oh no, not 'flight of the bumblebee!'" When you said sage green, I prayed, "not hospital pants!" You avoided both icky tones. Actually, I really like the yellow--it's nice, like melted butter on popcorn or even ghee. Not annoying at all, and not too chipper or pastey.