This is one of my fairly early Cinema 4D images. I did it for the fun of it. Well, okay, partly for the fun and partly because I wanted to have a go at a texture with a lot of stuff going on - bump, specularity, reflection maps, transparency maps and of course colour. Fish scales/fins were perfect for that.
I used BodyPaint to unwrap it and get a start on the texturing and then enhanced the maps in Photoshop.
The reeds were done using the Hair Dept plug-in