On the water, oil drops of different sizes on a yellow-blue backgroundOn the water, oil drops of different sizes on a yellow-blue background
Black and gold stripes with an emblem in the middleBlack and gold stripes with an emblem in the middle
Triangles with different faces on a blue backgroundTriangles with different faces on a blue background
The formula of water is written in drops on a planeThe formula of water is written in drops on a plane