I want to take a shot at an 'Fire Sonic' PSA, but I don't know if you guys have rules about this kind of stuff, so I just wondering, because after finishing my first Sonic PSA, I think I can use what I have now, and work it into a Fire Sonic.
Pretty sure it's ok, bro. If it's an edit of what you've made then I think you're good to go.
Why would we have any rules against that? Make whatever you want, just don't blatantly steal from other people.