The perspective you have with the front fins doesn't match up to completely hide the rear right... which also doesn't quite match with the tilt of the head. You could shorten the top left fin...but..that would require a lot of shortening.
What I would suggest is tweaking the head and neck a little bit, shortening the top fin a *little* bit and still add the missing one.
here are some quick sloppy images to show what i mean