Rendering various ideas

I've been trying to draw whatever I can that best suits the idea of my design solution.
Here are some of my ideas for an overhead storage unit.

Variations of overhead storage
Image: Ruchita Sahni

Collapsible storage
Image: Ruchita Sahni

I think that a collapsible overhead storage would be the best idea as it can be opened or closed according to the shopkeeper's need.

Tomorrow i am going to try and make a prototype for this idea.

I hope it turns out good.