The Guerlain Terracotta Sun Trio Bronzing Contouring Palette comes in three shades, as far as I've seen. I have Light, the lightest one, and the other two are Natural and Deep. Maybe I bought the wrong shade or I'm using it wrong but there's something not quite right about the way this applies on me. It's so hard to use it as a contouring trio because the division makes it so that the highlighting and contouring shades are very tiny. I have a hard time getting my brush on just one color at a time. But if I swish my brush on the entire lot, all three shades, this actually feels more like a too-yellow face powder on my light skin. The culprit, I think, is the large bottom half of the compact, which has that yellow-toned powder. So if you think of it as a contouring trio, that bottom half should be your true match and for me, it's just off.
I realize that if I tried the darker shade (Natural), maybe I could make it work as bronzer, just swishing my brush over the entire thing every time. Or I could make do with the one I have, with some effort. I figure that if I can evenly get more of the darkest shade on the brush... ok, you know what? Too much work. I guess I'll keep it as my compact for the summer, to stow in my purse. But, still not sure of the proper niche for this Sun Trio in my collection.