I've updated my concept, but I can't get to a scanner at the moment, so here's some silouettes or the model I've started. I really liked the lower body of the original concept, but I wanted to go for something with a bit more character in the upper body, so I decided to create my own take on a medusa with the catipillar/leech lower body.
I think I liked your initial concept better. The teeth in the hip region feels awkward to me. But from your concept I really liked that whip arm and the sandworm tail. Will you be incorporating those two in the new design?
Replies