This is Ameba in a cute way.
These are multiple irregular dots implying the white dots. And the incomplete black dots become shadow.
These are dots that form flowers and diamond shape.
you can see both fish scale and leaves in that picture.
This is an owl and the gap between the circles form it’s mouth.
These two pictures are black dots that were cut to form different shapes. As the teacher said, there were unintentional surprises, like in this picture you can see lips.
Diamond shapes everywhere.
And last but not least, this two pictures can be seen as individual flowers with leaves, but if you connect all of them, the leaves form other kinds of flowers.