Yeah, I try to avoid the horrible "-chan" on every name thing... it one of the worst memes we got from anime. As far as I understand it, it specifically means "child" and is usually only used by VERY familiar people. That is, something a grandmother would call her grandchild.
But as to your question... no problem at all! I'd actually be interested to see what you come up with, and it never hurts to have another avatar/character image.
Colors/clothes... umm, really up to you I guess. Any valid snow leopard colors would be fine. Meaning white/grey and up to light brown for the main color, with dark-grey to black rosettes. As for clothes... never really thought of it much. Most settings I've had the character in tend to not have clothes for more animal-like forms... "Xepher" is (nearly) quadrupedal in most settings. That is, most comfortable on four legs, but can stand up to do various human-like things that need hands or what. Feel free to interpret things however you want though. Anything including quadruped, full anthro, the 'taur form above or a mix of stuff in between. Colors (within realistic bounds) as you want. Clothing is the same thing, though for reference, usually baggy-ish and plainer clothes. E.G. Cargo shorts and t-shirts in a modern settings, safari gear in a victorian era, or bulky armor in war-like settings. Just a suggestion though, so do whatever you want. :-)
