some sketches for the tortoise guy

These are the sketches for a version of the tortoise guy from four views:

This guy looks really old and sad. I'm not sure if I like how it looks more turtle than human. I will make the next set of sketches look more human-like.

Here are some possible information about this guy:

Name: Turtleman
Height: 6’3”
Weigh: 323 lbs

Description:
-Head and limbs are covered with scale
-Half of a shell can be seen on the right side of the body
-No teeth

Facts:
-vegetarian
-in stage of hibernation when surrounding temperature drops below 34 degree Fahrenheit
-head can be pulled into the shell for protection
-maximum speed can be reached is 0.23 mph

Personality:
Reclusive, shy