I wish I would have uploaded more process and variations between the last and now; but I have axed the pipe element, went back to the "hazardous" text but took it out to work more with the iconographic imagery from the pictures I took.  Added some nice new subtleties with the warning (!) sign and altered the right-hand branch to not have the awkward right angle.  I have used repetition of the electric form, the warning/advertencia form, and the (!) sign to show pattern and cycle.

Not sure if this is working more or less now, and it's still metamorphosing, but I have everything in layers and am being as nondestructive as possible with my methods.