Problem with my brake light and wire help pleasee ???

Hi evryone i have got a problem with my rear brake light ! When i turn the ignition on the rear brake light will stay off even if i press my brake levers i have bought new clips for the brakes wat screw in for the conectors but still the sme sometimes the brake light will come on when i press both levers in at the same time but only sometimes ill post sum pics with this post to see if anybody can tell me are my wires messed up at the front as i havent a clue thanks in advance