The image is an illustration which displays how to call each fin of a fish. I used a salmon image. The original image is from here: upload.wikimedia.org/wikipedia/commons/0/06/Salmo_salar_%28crop%29.jpg. and about each name of fins, I referred to here: en.wikipedia.org/wiki/Fin#/media/File:Lampanyctodes_hectoris_%28fins%29.png
Fin-how to call free icon was designed by yamachem for icons Png and presented to its users.
yamachem
2/2/2018