The "Heart" rating appears to be the size of four other emojis (in a 2*2 square) when I hover over the "Like" button get access additional reactions. While it does not impede functionality, it does look a bit weird.
Seeing that Threadmarks have been integrated, are you planning on going through and threadmarking all of this? Also, are you planning on posting this story on Royal Road? They do allow Fanfiction, provided it is correctly labelled and credit is given.
I read Titan of Steel over of Royal Road...