Ominous "PROJECT X"

I was asked to illustrate a small section of 'Macbeth for kids'.  The part I was given was towards the start where the three witches are on the heath with the mist and storm etcetc...

Couldn't go any bigger than A5 with it, which is considerably smaller than I usually work, but oh well.  I wanted to keep the witches awaaaaayyy from that whole stereotypical big-nosed-green-hag thang, so I worked with the ideas that witches are associated with shapeshifting/animals and such.  I like that it looks like they're just dressed up in creepy animal costumes too.