Character Design: Villain Progress

After getting some feedback from Justin on my Villain's Silhouettes, I was told that I needed to sort out the legs to support the weight of the creature when it's standing, however I found it difficult to find something appropriate.

This is the silhouette I chose and that I have to develop: ( any suggestions? )

I went on to develop the face of the villain, I drew a few designs of the eyes and mouth shapes keeping the villainy look, means using pointy shapes:

Here I have mixed the eyes designs with the mouth designs:

It wasn't satisfied with the look of the previous designs, so I tried mixing my designs to come up with even more interesting shapes. I quiet like number 1.