Plan week 3,4 (repost)

Reflection
This was the original sketchup plan I drew on week 3,4, now its week 5 and the Upper ground of my Sketchup model has start to form its shape. I found that the model and the plan has a great difference due to my sufficient google sketchup skills and the program's restrictions.

Spiral Stair

This is the stair I made
its has not been coloured yet