Is the shell normal on my year old Sulcata

[AdrennaHall]

It's shell has been like this from the first day I got my baby I'm not sure if it is normal or if it is something that I need to have checked? It is growing and acts fine. It was the size of a half dollar and weighed 21.7 grams the day I got it and weighs 400.4 grams now.

 

[ZEROPILOT]

What are you most concerned about?
He looks sturdy and has a relatively smooth shell