At first sight, I have some suggestions. I would like to know the models price without having to add it to the cart, open the cart, open the model and select each material. It could be great to see the description page with all prices together. In the material overview, I can see some good details for the first material (Cream Robust) as the minimun thickness of the walls. However, the other ones don't have these great numbers. I think it is very important to make a cheap and solid model. And finally, I would like to know (maybe in the material overview) the weight of each material per cm3 for example (and maybe for each model). If you design a model with thin walls it could be too light for your purposes. Fantastic work!