Here's my take on your contest, I've been waiting for a project to use my character design skills (although I'm more inclined on the anime genre) I hope you find my designs suitable to your needs. Here's a draft and kindly let me know and I'll be glad to polish them for you. I drew my concept on futuristic steam/cyber-punkish genre. The design is influenced by eastern martial-arts, as well as trying not to compromise the "futuristic" "post apocalyptic" aspect. I included a weapon design, jetpack for flight and a short animated sketch gif so you can get an idea of how it would look. I hope you enjoy my work! Have a fantastic day and thanks again!