Honestly, after seeing the single e/s in person and playing with them a bit I feel 100% ok with skipping all of them (even the grey, which is unheard of for me, lol). They're nice colors, but if you have a decent sized e/s collection I can pretty safely say you have these shades already. I'm an eyeshadow addict and I love the tartan imprint, and to be totally honest..
.if they were normal sized and would fit in my palettes, I'd probably be buying a few. They won't fit anywhere, and because of that I know I won't use them unless I think of using them specifically (which I know won't happen once the new-ness wears off because I already have these colors elsewhere).
Easy skip for me, for once. I'll be saving my big eyeshadow splurge for the Peacocky collection because those sound incredible and worthy of buying, even if they won't fit in a palette!