I think the Batman and Signal posts I saw were from lemonpeace, yes
By furnypaw on tumblr in response to the trailer
I think it's due to them being closer in age. Everyone is a teen so I don't think Dick is done growing just yet. That and he looks like he isn't standing straight
Gotham 1919-1939
Damian
Just discovered this creative series by The BatFeed
Basically it's Gotham, Batman Mythos [heroes and villains ] historical documentary style