Your baby is beautiful. Please don't think that I'm picking on you, but I want to share something new about raising baby sulcatas:
You should remove the hay from his hiding place. The new school of thought is they should be kept moist in order for their shell to grow smooth. You can't moisten hay as it would mold. If you use a substrate you CAN moisten, then it will help the baby grow right. I like to use cypress mulch, but you can use whatever you like that you can moisten...orchid bark, coconut husk, even dirt.
Zuri is a great-looking baby and I hope you continue to share his pictures with us.