This design you`ll see on two different people and made with gel polish and regular polish.
Here is the first one, made with ordinary polishes ->
The used polishes here are Flormar 412 as a base and BK Hello Kitty 27, 33.
You`ve seen this decoration made on whole painted nails - Colorful Pastel Circles
The circles are waterdecals from Born Pretty Store.
Here are the next nails, made with gel polishes ->
The used polishes here are Bluesky gel polish A84 and 548.