Bird man and hungry car

Bird man and hungry car - student project

Bird man and hungry car - image 1 - student project

 

Bird man and hungry car - image 2 - student project

 

Bird man and hungry car - image 3 - student project

 

First exercise with and without values. Roughly kept to three line thicknesses. I know it requires a bit more work, and is more difficult to balance, but isn't there something to be said for varying the line thickness based on perspective, overlap and depending on how sharp an edge is as well?