I read this on the Young Justice Wiki:
1 - "Savage bears a scar that resembles the signature mark of the Hunters from Gargoyles, another of Greg Weisman's production."
2 - "Queen Bee is voiced by Marina Sirtis, best known for her work as Demona, from Gargoyles, another of Greg Weisman's production. Queen Bee dons a veil around her shoulders, reminiscing Demona's wings when furled. She also wears a gold armband similar to the one that Demona used on her left arm, and a golden diadem that resembles Demona's headpiece.
was this a conscious nod to Gargoyles? who's idea was it?
Neither were, actually. Phil Bourassa designed both characters, and if he was inspired by Gargoyles - a show he didn't work on - I'd be very surprised.
These are coincidences. Fun coincidences, I suppose,
but just coincidences.