Development and refinement

 Here are some different trials for my final composition.

In this the lines remain.

 In this I have used the 'noStroke' function. this prevents from overpowering the picture with black lines, but in the last image you cannot see the triangles at all.

 In this I have used the noStroke funcion on the quadrilateral shapes and not on the triangles. This allows the triangles to be seen as thin lines in the last image.