This topic is trailing off miserably. Point being: add constructive criticism, or don't add any at all. Placing meaningless tips before and/or after an insult isn't exactly constructive. When you do that, you're really only teaching people you're schmuck a who's greatest talent is pointing out obvious things. And you shouldn't misuse words just to make your argument sound more valid. It's tacky. (Note: You can be constructive without being critical. It's not necessary.)
Back on topic, thought. I have no problem with your character, nor am I suggesting that you change her. But, you could just use a few methods to change general things about your character; so even if you were still to edit the Sonic sprites for your wad, the character could still be somewhat original outside of that. By the time you finish your first wad, you may not have even changed a thing about her. But,
Oj Simpson said:
If you did change it, here's how you did it.
First of all, you could give your character more of a visible personality; so you can get a basic idea of a the character's personality just by appearance. You may want to try to
here for basic ideas on a color scheme, rather than randomly drawing together colors. (Not saying that that's what you did, just being general.)
Might also want to consider clothing. Though sometimes the simplest costumes work, you may want to steer away from something you yourself might actually wear. But try not to overdo it as well (You don't need to make your character look like they're from a Final Fantasy game or Sonic Riders). Naked is classic, but remember, you're trying ot be more original, so above all, ask yourself "How often have I seen this before?" before you change things about your character. (A character that has already been created + a cloak from the Matrix (Or Kingdom hearts) = Not original.) And also take into consideration that even with the most original ideas, there's always going to be something close to it that came before it.
Consider species. Your character doesn't have to be a hedgehog/fox/echidna/bird/bat/cat/insect/reptile/any other rodent/scientist. There are plenty of things that exist in this world that no one uses for a character refference. Humans seem to be in short supply. If you think keeping it an animal will still keep it sonic-esque, then try searching for animals no one uses.
(I've never seen anyone use a pangolin before..)
Another thing is ability, and actual story. (If you so chose to create one for your character). "Faster than Sonic!" "As fast as Sonic" "Slower than Sonic but faster than Knuckles!" "More powerful than the Chaos Emeralds" "From Silver's Timeline!" "Amy's old boyfriend!" "Shadow's Brother!". If you have to use something from the actual series to describe your character, or their abilities, then they're more than likely not original. Try stretching your imagination for a bit; beyond the limitations of the Sonic universe. (Note: If you're cloning something from the Sonic universe to create backstory for your character, it's not going to be original. Example: My Character's 'Havoc Stones' > Chaos Emeralds) Try to come up with abilities that don't involve other Sonic character, and also keep your character from being god-like as well. (Not that I have issues with that. It's just that it's frowned upon in Sonic communities)
After that, you basically get into specifics on appearance. A fictional character's eyes and hair are a direct representation of their personality 80% of the time. (Narrow eyes: Devious, evil, shifty. Bib bubble eyes: Happy, jovial, kind. White hair: demonic, mystical, wise. Red hair: Badass..etc.)
Last but not least.. the
shoes. Your character can be original as anything, but in the Sonic universe, your shoes are almost like a fingerprint. If your character's shoes are purple version's of Sonic's shoes, or Tails' shoes, just black instead of red: You really need to rethink these elements if you're trying to go for originality. If your character's shoes contains any parts of shoes that belong to other Sonic characters', then you may need to backtrack a bit. (Also try not to make your character have clone body parts of other Sonic characters. Like Shadow's chest hair. Or Tails' flicks of hair. Or his Tails for that matter.)