MacBook won’t charge because of water damage

Spilt a small amount of water around the middle of my MacBook a few months ago and it would turn on but wouldn’t charge. A week ago I tried charging my MacBook and it worked. However, when I tried charging it again the next day it didn’t work and the charger light stayed black. I posted here a few days ago and someone told me to install Coconut battery but sadly my MacBook ran out of battery before I got the chance. So I decided to open up my MacBook.

The last image is of the back of my battery, do the red dots mean water damage? And can you see water damage anywhere else other than the battery? Thanks