Speaking as someone who's a life-long comic geek and has some familiarity with the aesthetics of superhero costume design - even if I don't read the as much anymore - NICE JOB! Of course it's a pre-existing design, but one done in a very different style and for a completely different body than that of a human. The torso piece looks nice with tails under the belt, and I like the idea of the upper legs and arms being baggy but tied down by boots and gauntlets. That gives it a different look than a lot of superhero outfits and its practical for disguise purposes, considering the costume was worn by at least four different people.
I can see what happened with the cape colour though it still looks nice though. Oddly enough reminds me an old Robin supporting character known as the Spoiler. [link]