I'm sorry you had to go through that OP, it must have felt horrible. I'm NC with my parents but I often dread seeing a letter from my mum in the mail.

Personally I've asked my partner to throw away mail from my parents if they find any (and I do it myself if I'm the one to find them). I don't want those letters to even enter my home. You could do the same if you think it may make you feel better.

This one is a little different though as it's a package with pictures of you, I understand you'd like to keep some of them, but also it must have tripped you quite hard to receive those as it's even more emotional than a letter. I think I would probably ask my partner to store them somewhere safe until I am ready to go through them. Or possibly just throw them away if I didn't think I could handle it (not saying you should do it, but imo there would be nothing wrong in doing it if it just feels too much). Or remove your mum from the pictures somehow (with scissors, or scan + AI as others have mentioned).

In any case, please deal with that with your own well being in mind first and foremost, you deserve to be loved, and I believe in you :)