The Seal of the Girsu Gates (20)

Hint 1 of 16:

The squares can be moved with the mouse.

Hint 2 of 16:

But what picture is to be assembled?

Hint 3 of 16:

Can you find any squares with two colors on them?

Hint 4 of 16:

You should find some blue and green pieces.

Hint 5 of 16:

And there are some green and red pieces.

Hint 6 of 16:

The pieces can be moved to form disks.

Hint 7 of 16:

The vertical pipe on the right can store pieces.