Replaced LCD now looks terrible through lcd
I think it's the reflective pages behind the LCD. Can these be placed in backwards and look like crap?
Firstly, I really hope this isn't for one of your customers. If it is, stop what you are doing and buy them a new assembly! You have likely got a lot of scratches/dirt in between all the sheets if you have lifted them off one by one. Practice on used assemblies before attempting this for real!
If it is a practice assembly/personal device, you may get away with removing the top backlight sheet. I am sure I tested one like this before out of curiosity, when I was transferring sheets from one assembly to another, since the customer took it to a shop previously who pretty much destroyed the sheets. I think it looks a little bit washed out if you do this though, can't remember exactly.
So for solutions; replace the whole assembly if it's a customer's, if it is a personal/practice assembly, swap the sheets from another assembly or try without the top sheet (unless the others are damaged). If the very back layer is damaged, you will have to swap the assembly, no solution there.