About this 3D model

Hello everyone, this is my first creation for the community. It's a medieval styled dice tower. If printed with a height value of around 20cm, the tunnel is a little over 4cm. I have textured the tunnel with the same brick structure as outside to ensure the dice will not just glide. I haven't printed it but I did open it on a slicer to check for any major issues. Apart from the door which will need at the bottom some support I couldn't see anything weird. I also included a small box like structure to go in front of the tower to catch the falling dice. If someone ends up printing it I will be more than happy to see a photo of it. If anyone has a suggestion to improve please leave a comment.