I'm not the person you're asking
and your comment is old BUT did you ever find an answer for yer question?
in my opinion if it comes right from ya head, it's original. taking inspiration is absolutely okay, but there is a line between inspiration and copying.
if you're being accused of copying because your character is the same species as another person's character, that's rarted. it's not unusual for different people's characters to have nearly identical color pallets, personalities, etc., but that's usually coincidence and no one (should) rag on you for it.
but if you're being accused because your character has the same build, personality, species, colors, AND other details as someone elses'? might wanna look into that a bit, maybe make tweaks to your design if you see it fit.
i personally wouldn't stress much about it!