It seems that in this scene your alchemist has found her Philosopher's Stone and thus has become transformed. For a complete analysis of all my thoughts regarding these two paintings, see the rather lengthy comment I posted on the other image. Adding to all I said there, let me just say that these are spectacular works of art that go way beyond the more simple subjects that many "fantasy" or "magic" themed works tackle. I have faved both of these, and happily! Masterpieces, both of them.