Composition In Metal

Someone used whatever was available to cover an opening in a wall. I stopped to admire the repetition of vertical lines and the way that rust had gradually replaced the  paint. Was there any thought beyond pure utility that went into this patch of metal scraps? Did the unknown patcher deliberately turn the line in the white piece to match the corrugated lines? Was the green metal chosen instead of some other scrap because the patcher liked that bit of color?  We'll never know. Keep looking. Accidental compositions are out there everywhere.