If I may ask, why is it important that it be in powder form? And what do you mean by soft yellow? do you mean like butter yellow, or a skintone that leans in the direction of yellow?
The glitter you find in the fad "mineral" makeups is just mica, a fairly inert mineral. I wouldn't want to get it stuck in my eye, but otherwise, I wouldn't guess it would affect sensitive skin.
Sents on the other hand I can identify with. If I wanted sented cosmetics, I could add my own damn perfumes.