The board presentation looked very nice - I liked how you layered the sketches and photos, it gave the board a lot of visual depth.
Your argument is where I think your project is having some issues, and perhaps this is where the questions about your solution are hinged. Your presentation is about why trees are important -- but this is not really the essence of your project. You should be discussing how your design addresses the issue of deforestation/waste. How do your modules create less waste? How do they respond formally to the material in the waste stream?
I am concerned about the implications of this product at full scale. How much glue is required to actually make this? I think you need to prove through some full scale partial models that this idea does work -- I think you will find that some useful changes can be made.