Development of book artwork.(developing character-Frank).

 I am trying to reduce body parts down into simple shapes using gouache ,charcoal and ink. Triangle were interesting shapes to make into legs,but I am finding it quite restrictive and drawing people like this. They are too simple and there is very little character come across I feel even with out faces. I am going to try a different method, but the shapes with slight textures look good. Textured shapes may work well?