When you say nude blush...isn't it supposed to be barely there, just a hint of definition and color kind of way? It might be a good thing that you don't see those colors the way other pigmented blushes appear.
If you want a more gold nude look, pick Sertao.
If you want a peachy warm nude look, pick Luster.
If you have a highlighter like Albatross, apply it as a base for the blush. This will give you that extra glow and lighten the area a bit so that the true color of the blush can show.
I also like Zen and Madly as nude/neutral blushes as well.
