I think u would like to see Leech as a Horseman, it's always unsettling to see children like that. His powers as a Horseman would be insane, provided...
With the comics and other media hellbent on portraying her as the genius because of the MCU, his genius will always be taking a backseat in anything...
That hair cut was... a choice. She looks like Annie who cut loose after growing into adulthood. Never really got why the comics were forced to delay...