I never thought of snakes as being fertile ground for experimentation but here it is. I really liked how many different puzzles you got out of fairly simple mechanics like the biting off tail parts, keeping doors open, busing travelers, etc.
I didn't manage to get all the way through but I liked what I played. The one that really stumped me was the Greed level, but managed to figure it out after realizing I miscounted how many parts I needed.
Good job!