Those are nice references, wish I had something like that when I was making this . Still, if you imagine that the right hoof is not tucked in but rather just hidden, it looks fairly similar to the second picture there. Maybe?
Also the pictures do have to do with electromagnetism and waves (squee!), specifically they are: 1) the relationship between electric and magnetic fields at a certain wavelength as a function of its direction of travel 2) An electrophysical recording of a voltage showing the various phases which occur as an electromagnetic wave passes a point on a cell's membrane 3) Maxwell-Faraday's Law of Induction.
Sweetie Belle, you'd need to get an A++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ to get out of school. Nopony can ever get a grade that good. An A+ is the best you'll ever get and it won't let you leave school. Kids these days.