This logo was created in Illustrator by drawing a simple, solid fish shape and then using the Effect>Distort & Transform>Roughen… option. I then manipulated a few of the points to make the result look a bit more like the lionfish.
This was the result.

I originally thought I would make the background of the fish some sort of rainbow pattern. But after a few attempts, it didn’t seem quite right. So I went looking for a different color scheme. I landed on this one. I’ve always loved this color combination. It’s warm, earthy and subdued, but I’ve never found a good use for them. This project provided that perfect opportunity.

I drew a rounded square, and divided it into sections using the eraser tool. I then began to play around with the order of the colors and the space between them. Here the lightest, white-pink color is a separate shape behind the sections of red, green, blue and gold. The lines were free-handed and it gave it a flowing, organic movement, which added a lot later on.

Placing the lion fish over this pattern and using the Pathfinder options to combine the shapes, created this.

Although this is a little busy, I found that the diagonal lines over the fish gave the impression of flowing of water, so to emphasize this more, I began playing with the colors in pairs, and got beautiful results. Below are several of my favorites.
And finally, the finished logo.

Featured Image photo by naomi tamar on Unsplash