I honestly don't know anything about Sally Hansen's New Lengths collection. Judging from the style of the bottle and the yellowed CVS price sticker stuck to the side, I'm going to estimate it's from the early-to-mid 90s. I could be wrong, but the packaging is very reminiscent of that time period.
Anyway, "Mosaic Creme" is a nice (obviously) creme polish with a gray-blue color. What you see in the bottle is exactly what you get on your nails.
In this picture, it doesn't really show its blueness, looking more like a dark slate gray which is inaccurate. I applied 2 coats and that did a great job, it's completely opaque.
Here you can see the blue tones more obviously. This color is akin to a medium wash denim. It is pretty subtle (at least on lighter skin tones like my own) and appropriate for the workplace without being the typical red, pink, or nude "professional" color. I give the thumbs up to Mosaic Creme!