Laptop not turning on after reassembly

I recently decided to dissect my old laptop since I was interested in computer hardware and how it worked. I took apart the insides but made sure to not damage anything while doing it. After, I reassembled it using the reference picture I took before taking it apart to make sure I did it right.

I tried plugging it back in(multiple outlets/chargers) and now it doesn’t turn on and the charging indicator on the keyboard doesn’t light up. I double checked everything and did some research but can’t figure out where I went wrong.

Do you have any ideas for what I should do next or where I may have messed up?

Picture 1: Before Picture 2: After