Triangles Circles and Squares Oh no!

I was asked to create some different design using these three shapes, one shape for each design and heres what they looked like:

The Circle design are my least favorite by far, I think they just don't work well compared to the other designs.

I rather like the black square design even though it would be more of a cat walk design then a practical design.                                                                           

The right design is my favorite by far of all my designs, I think the chained triangles just work and would make a brilliant garment. the chained effect reminds me of knitted, crochet and lace pieces