Gil's Hasshoken

Aight, this is gonna have to go in stages, as some things might already fix themselves or create other issues as they're being reworked.

For starters, there's the question of why would this be a "sharp" category? It doesn't use any kind of blade or other dissevering force, it should definitively be blunt as you're using punches, kicks and other such things.

Bonus, too not a whole lot of sense. Why would it have extended range? I can tell you right now that you will not be allowed to "shoot" shockwaves through the air over distances.

Which brings me to a general point: Poor man's Gura-Gura this is not. You're vibrating parts of your body and if it touches something else, that vibration is passed on. That is why canonically this technique is "said to be" unblockable as even if someone can deflect the force of an attack, there's little they can do against the inherent, transferred vibration from just being in contact unless they're clearly overpowering the user. In general, across the entire style, i don't really see explained what the vibrations actually do. It's mentioned very vaguely here and there with nebulous phrases like "It is claimed that these attacks are unblockable and reverberating" and "might affect the enemy's abilities to resist the basic attacks the user performs" and the likes. Both of these instances are not really passable as they are, since all moves of a rank do that rank's damage. If you want to do more damage with your moves, make that your bonus or take talents etc. If you want to enhance your elaborated actions (similar to what marksman has as their inherent feature), that would also be a bonus or possibly attainable via the mechanics meant to do these sorts of things like (Super) Talents, too. 
In short: You need to describe more specifically what the shockwaves do and how you generate them and such.

As for ranks. No special effect usage at Rookie. Rookie rank moves set themselves apart from "i try to punch the guy" via having access to the Style's bonus while elaborated actions do not.

Junior would be fine bar lacking the overall description of the vibration feature overall.

Journeyman, same deal as junior, rank contains very little, would be fine-ish once the vibrations are more explained. the Shigan from Expert could be on this level, but that's your choice if you want it this way for character development purposes or otherwise. Though investing "less effort" makes no real sense, as Journeyman moves are inherently greater then Junior and Rookie ones, including their stamina cost, on top of that you aren't really using anything but stamina to employ your special effect, which is just a normal procedure.

Master: See the other ranks for shockwave explanation needs. Also see above for it not being Whitebeard lite. Combining styles doesn't belong in here, as that is a different matter entirely and would better be mentioned in whatever style you pick up secondary, as you already know this one and are going to use parts of it with your new one, as opposed to learning "half" skills of this to have things that other styles/moves will complete.

Also, the note is sort of unnecessary. If you know you have those sorts of things, just invest the extra minute to work them out of the descriptions in favor of the relevant underlying abilities. Pointing it out doesn't absolve it from being wrong.

Ok, I now know what concentric waves are. However, this still doesn't explain how the vibrations are created through this Style. Does your character flex and un-flex his muscles rapidly and repeatedly or does your character vibrate his limbs back and forth like a tuning fork? If there's another way these concentric waves are achieved, please integrate the explanation within the ranks of the Style.

Just to be clear, I'm not forcing you to remove the vibrations or shockwaves from your Style. I simply want to know how the vibrations are achieved. After we have both agreed upon how the vibrations are achieved, we can move on to the effects of the shockwaves created by the vibrations.

Ok, so flexing and unflexing has been decided upon. You may not have integrated the explanation into the ranks of the Style, but I would be nitpicking at that point. So yeah, let's move onto what the shockwaves created by the vibrations can do;

So this is more or less up to you - perhaps the shockwaves carry the strength of the move you are using through objects, which causes "unblockable damage". If that's the case, a shield would be unaffected by the initial strike, but whatever's using the shield to block would be dealt damage instead. This could also cause the earth the shake and knock people off balance, but for all shockwave moves you'd have to touch something solid for the vibrations to create the shockwaves. Punching the air would disperse the shockwaves into infinity without doing anything unless you found a way to affect a specific portion of air (rankyaku, cough cough, geppou, cough cough).

So this time you actually need to integrate what the shockwaves do into your Style's ranks. After all, how else can you properly explain how the shockwaves scale in power and versatility? Oh, I should also mention; Rookie is not able to have vibrations/shockwaves of any kind, only the bonus (this goes for all Styles, not just your Style).

Anyway, thanks for cooperating so far. If you have an idea for the shockwaves other than what I suggested, please talk to staff within the #grading-talk channel on discord; easier and quicker to talk grading stuff there.