For Felix and Erica, Felix would have dressed as "the Spider" in a tight fitting spandex bodysuit, while Erica would have dressed in this sexy Nightcat costume.
Nightcat was originally going to have white hair like Spiderman's Blackcat, but when I experimented with this red hair, it just looked so much better. It also gives Nightcat a bit of a Batwoman vibe.
I had struggled a bit with deciding on Jess' costume. First she was going to wear a Rogue inspired costume, but with her red hair, I figured she might look better as Jean Grey. Problem was, in her Jean Grey inspired costume she looked a lot more like Fiona while Fiona looked more like Jess.
I was about to solve that problem by giving Jess a Wonder Woman costume when a sudden inspiration hit me, and I thought to myself, why not She-hulk?
I haven't decided yet if in the 'real world' Jess had dressed as She-hulk the year before, Jess is more of a mermaid/vampire girl than a superhero girl. But maybe her friend Axel (Ashley) convinced her to let him dress her up in a coat of body-paint.