One question: Do you mean the three cross-shapes to suggest the crucifixion on Calvary? Most big US cities don't have those phone poles anymore, so especially with those slack ropes these look like crosses.
But I love the characters here, especially ScowlyBat-is-Scowly!
Haha, it's like Bats is the pushy father and is like "COME HITHER MY CHILDREN!!" And Dick's like, "Yes, come on my brothers!" Then Tim's all like, "Okay brother" But Jason's like "No @!#% you guys." And Damian's just like "-smirk- ->tt<-."