As above. I can see the screw bit which is missing but can't get the whole light out. And DIY guides or tips and hints
easier to do with the bumper off, but not impossible with it left on however you might want to jack it up
remove it complete with the mounting bracket aswell, will make things easier
the mounting bracket is held on with 2 coach bolts, the nuts can be reach from behind the bumper, iirc theyre 13mm
hope that helps!