This is one of my favourite interpretations of her ever. Ever since I saw this version by rongs1234, I really liked the idea of incorporating toad skulls into her design. And you used Battletoads-sized skulls! This is a great idea!
Traditionally, her cape isn't really attached at the neck, hehe, bit of an inside joke in the fandom that her cape just magically floats behind her (she is a dark sorceress, after all), but I also like your interpretation of clasping her cape around the neck.