So... through this, I have discerned that which I already knew but will put, in way of summation, here.
It's okay to have an outlandish character as a fursona so long as they are not based purely on the need to be unique, yes?
I know that I, for one, absolutely adore 'unnatural' colour schemes (hence me fighting with myself over red and black and purple and dark blue for my fursona, currently) and when I see characters that have these colour schemes, I basically fall in love.
I will, however, note that the characters to whom I refer are not necessarily actual characters that I have ever learned about. I know nothing of their personalities. They are simply flashy faces to distract myself with. That is... they all blend together after a certain amount of time.
To the contrary of that previous statement, it should be noted that if a character's physique has been created without the sole purpose of being unique, I'd say nearly anything goes. (Also, imagine the torture that an abomination would have to go through! The emotional and tragic backstory of a mutant with five wings and half of his body enclosed in scales...!) (Who am I kidding, someone with that sort of character probably doesn't give a damn about backstories.)
Well, this post has been scatter-brained, just as I am. I suppose that I'm trying to say that characters with crazy physical appearances simply made that way to be unique are bad. Characters with crazy physical appearances (and I don't mean absolutely crazy, I just mean, like, an arcane symbol here and there, maybe some strangely coloured fur, a crazy hairdo, idk, wings, sure, why not) who have been created as actual beings with thoughts and feelings and needs and wants... well... that's where the real fun in being 'unique' lies, no? (I'm so scatterbrained. Derpiederpderp. Kudos to you if you understand what I'm saying in my own true-neutral sort of way.)
PS: I am guilty of putting nouns and adjectives in names. They just sound so AWESOME! But that's the only thing on here that I have been deemed guilty of, actually. So... points to me? Also, the 'nouns and adjectives' in names rule had to do with a few stories that I was working on in which it was normal to be named that way... and I've never named my fursona like that... so... I don't know if that counts. Hm.