Cougs and her cowl

Why is it that what should be a simple thing sometimes turns into a nightmare?
The rear cowl is not fitting onto my bike properly and I can't work out why. It slots in fine at the back (the end closer to the exhaust) but won't fit right down at the front.
I have put the washers in that came with it and it seems to be put together properly to me, so any ideas?
I had added some pics that might help...

The rear cowl is not fitting onto my bike properly and I can't work out why. It slots in fine at the back (the end closer to the exhaust) but won't fit right down at the front.
I have put the washers in that came with it and it seems to be put together properly to me, so any ideas?
I had added some pics that might help...