I like this. His clothing is watertribe, but not just a copy of korra's. The pose fits with how the water is flowing, and even if its a referance, I haven't seen it used to death like some others. All in all, you did a wonderful job!
Even if you used a reference,there's nothing wrong.well you've sure done an awesome job at the coloring and allsow at the water effects .Your character looks pretty awesone and kinda pissed atm so who ever pissed him he/she is fucked. Is he in a probending team?!