I assume you cut 3 sections from an old rear bumper and used them to infill it? How fiddly was the grooved section at the top to get right?
When I do mine Im going to plastic weld in my lower bumper air vents rather than just re-clip them back in I think. I just can't decide what to do with the indicators yet. 
Just cut one big section out.
But I cut it a bit offset so the angle was a bit different by mistake.
Then I just lined it up, superglued it in place, got a clamp on, plastic welded then fed molten plastic into the joins with a mini blow torch.
The lines I just took an angle grinder to on one where it wasn't flush then filled. Came out OK though, they line up perfectly.
Indicators are in the lower vents but I can see this being too low so probs put LEDs in the headlights if I can do it descreet enough. Probably spend some cash on decent bright ones and tint them with window tint then stick them in.
