Cavern Hallway Curved Stairs

I created this and many others to go along with the Cavern Tile Set for Open Forge Found Below. I'm not that good at 3D art using Blender, but the result turned out decent, more to come.

The Photo is of the first version, I have added some detail in the posted model.

Inspiration for these tiles comes from the base set created by Lifeburn linked below:

http://www.thingiverse.com/Lifeburn/collections/cavern-tiles