I liked the octopus/fish idea too, but I wasn't sure if I would make work an action pose for her having everything reading as only one entity (I hope I explain myself well enough), so I went for the shark idea because I have always loved sharks shapes. Thanks for pointing out that tangent with the arm, altough I'm still not entirely setted with the shark position, I had not noticed it. Your idea about the perspective would look great too! but I like this pose, so I think I will go with it. Now, the shark is supposed to be some kind of summon she is doing, so it will be kind of ethereal, I hope it will be clear once I render it out.
Thank you very much for taking time!