Basic forms (Fish - the second option).
Expand the basic shape kite.
Fold the second kite (already lower). Thus it is necessary to omit the lower side of the square to the line of inflection. Expand the product.
Fold the square of the second diagonal.
Zaschipnite lateral angles (folding them in half on the diagonal line) and bend them upward, closing the figure along the lines of the diamond.
The basic form is ready to fish.