I'm not really sure what kind of fish these are supposed to be. I was looking at photos of different types and was choosing things I like from different species. I just felt like drawing fish. Two other things of note here is that I actually roughly used a pencil here first. I usually don't since it seems to me that I'm drawing it twice. The other thing is that I didn't use my usual ballpoint pen. This was done using a fountain pen with waterproof ink.