1.

Forefoot Equinus

(foot points downwards)

2.

Hindfoot Varus

(the heel rocks inwards so that the foot rests on its outer edge) 

3.

Forefoot Adductus

(the foot turns inwards) 

4.

Midfoot Cavus

(the arch is exaggerated) 

Disclaimer:
 This is not a medical site. All content is from a mother's perspective and understanding. I believe all content to be accurate, but am not a medical doctor.