One of my first task on this movie was to infuse some life in the Character, play around with Venom and make a series of quick studies showing him not as a 3D model but as a creature with a distinct personality (there is a sort of grotesque joyfulness in the character I really love, especially in the Lethal Protector comics).
Then I was asked to design ways for the Symbiote to slither over Eddie's face and create Venom. In my mind, the symbiote, being a shapeshifter, can potentially grow teeth, gums, eyes and tongues wherever it wants over his surface. All its matter has the potential to become these sort of features. It just chooses to create them on the face to arrange them in a way is more functional for a bipedal host. I wanted to give the idea of these features emerging and rearranging, lines of teeth moving and sliding around until they compose the final shape we all know.
Here is a selection of those works.