Top effort there!
It's always so much better to remove trim as you have done, rather than to mask around it. But having said that, I would leave the windscreens in place.
Sanding blistered clearcoat is a horrid job, isn't it... looking at the bonnet (sorry, hood
) I can feel the pain... Because the clear is so much harder than the base, the basecoat and then the primer starts to disappear around the remaining patches of clear, so you end up with ripples and waves... best of luck! (I find it best to take the clear off with a razor blade, even if that means filling small nicks/scratches with primer/surfacer later).
-Alex