@The Unraveller- It looks like 'Ribingu no kiri' is an enhanced version of Hiding in Mist Jutsu, which is B ranked, and I'd have to say no to that alone. Only way that would work is if it was a close range cloud of limited distance. The chakra sensing for now I'm going to have to say no to as well, specially as your char isn't a sensor. I also use Earth Release a ton, I know hiding can be cheap (love doing it), so going to say make sure you remember your character needs air whenever he goes underground.

Also, good luck controlling a mute, might be hard, but up to you. 

@TheFourth- Gotta be honest, Nara's are really hard to grade. With the attributes, if his intelligence plays that big a part of his combat, I'd need it listed under skills. I'm a wee bit hesitant though about okaying a taijutsu oriented Nara with shadow clones. I'm pretty sure those aren't shadow clones though, as you have that as a C-ranked tech, shadow clones are B-ranked. I'd like a name change, just to avoid confusion, maybe shade clones? If it's C-rank, they'd be weaker, so I'd say they can't use seperate jutsu. Also, to avoid combo potential, and cause you do have flash bangs, I'd like them weak to light.