Across the Stars is a pale, icy pink with a metallic finish, and larger pieces of silvery sparkle/shimmer.
Low Lights is a metallic cream. It has some irregular shimmer, and gold tones, but is overall a nude shade.
Both of these colors handle fairly similarly, and the technique for using them is pretty much the same.
Apply with a fluffy brush to inner corner and highlight for a dewy highlight
Or Apply to those areas with a dense brush for a metallic finish.
Apply a denser amount above the crease to create a falloff for bright looks, blending it up towards the highlight with a fluffy brush.
Or wear on the lid with natural OR smoky looks.