Tuatara shelter

This is my plan, and the model I made for a tuatara shelter. When I made my model I changed everything because I couldn't make it match the plan. My plan was supposed to be made with wood but I only had cardboard.  I also changed everything on the inside because I couldn't find any plastic for the slide and lights to go in it.
Tuatara are special because they lay up to 13 eggs in their lifetime. It is my responsibility to look after tuatara.