Punzer Kunst makes numbers 1-3 and 6 explode, plus her own physical strength and durability are around their general ballpark. Don't know about the rest.
He cut out of something Gremmy thought he couldnt. That's whats clearly shown.
But it's not "clearly shown". Gremmy was right in that Kenpachi could not cut through Galaxy Void. Instead, Kenpachi simply cut Gremmy himself who was too concentrated on killing Kenpachi to remember hardening his defenses, something Kenpachi exploited earlier. Doing so allowed the hole to enlargen (shown in the same page) so he could walk out of it. If he could simply cut through space, he would have simply done so without mentioning to Gremmy that he had forgotten to harden his body. If Gremmy did harden his body, he would not have been cut, and Kenpachi would still be under the effects of space.
Taicho brings up yet another point. That small hole he couldnt stick his hand through at first tears wide open for his entire body to come out as he swings his blade. That with everything else sure tells you he escaped.
Which I covered in the explanation above and in my reply to him. Yeah of course he escaped. Because he was targetting Gremmy and not space. It was the only way he could get out. Gremmy's reality warping depends entirely on his concentration.
It's a separate pocket dimension/space given it's own environment that replicates space designed to trap whatever is enveloped in it, unless of course said target can cut through space. Guess what Kenny did? That's right, he cut out
There's nothing showing it's a separate dimension, as it's environment is replicated because Gremmy thought it up, not that it existed automatically. That's how the Visionary works. When Gremmy's concentration was disrupted out of his disbelief, Galaxy Void opened up again and the effects of space dissapeared. Otherwise Kenpachi's body fluids would have been shown being vaporized when he was walking out.
blah. good night.