Heavy on the percussion.

It consists entirely of stomping. Snakes don't have ears. Totally legit info there, well the second bit.

I would imagine it would be difficult to stomp without feet...

I was wondering if it would have a lot of rattles, but I don't know if that's too "on the nose" or not.

They are very skilled musicians to be able to do that seeing as they don't have feet.

What qualities distinguish vedalken from humans, aside from the blue skin and extra arms (in the case of the Mirrodin vedalken)?

Ten word time

They have violet blood and flatter features.
Specifically, while they have a bridge, they simply have nostril slits rather than a full fledged nose. They also don't have ears, but rather skin stretched over a timpanic membrane. They are also incapable of growing anything more than very fine, nearly invisible, body hair anywhere on their body.

They have a tighter rein on their emotions, and tend to have a higher capacity of intellect and a different appreciation of art and sciences than a human. Emotionally, they tend to run either cold or boiling, but they have no in between.

Question the third: Serra
How influential was Serra? Are there theoretically several planes around the multiverse that revere her as a saint or goddess as they do on Dominaria?

One thing to keep in mind, Serra wasn't a single being.

She was a goddess and a planeswalker named after said goddess.
Serra, the walker, really only had influence on her own realm, Ulgrotha, and Sursi on Dominaria.
Serra the goddess had a lot of influence on Terisiare ages ago, and some influence, it would seem, on Corondor and Jamuraa.

There's only two white organizations that I can think of that have greater reach beyond one plane.
The Order of Heliud and The Samite Order.

Nice.

Somehow I lost track of how many characters you've created. You've created a lot of characters. o_o

It doesn't feel like so many to me, possibly because the list is missing the non-planeswalker notables: Atalan & Katalin, Ophelia, Mary, Marina, Kyara, Rani (should she get voted in), or (non-canonical) Altair & Lyra. Nor does it feature characters that haven't come up for Vote: Ilyria, Mari Gwynn, Halea, or Nala Vedris

Also, I need to cut down on the names that start with 'L', clearly. (And plane names that start with 'A': Adrisar, Ashkanar, Aralheim)

Also also, it occurs to me that between the PW list and the mass of non-PWs, I seem to love the lower end of the power bracket.

I have two, as well. Arbagoth, and the Amphiseum.

Well, time to balance it out with some "Z" planes. Zizoraza anyone? I don't know if it sounds that great, but it looks pretty pretty when you type it out.

The plane I made for Magic: The Musical was called "Zon," does that help?

A little. Not enough, but it helps.

Well, that's about how much I usually manage to help...

How easy/difficult is it to kill a Jakkardian Angel? I know we saw Fisco go to some pretty insane lengths to do it, but that clearly was not out of necessity.

I would say they are particularly hard to kill, but I'm hardly an expert on that.
I imagine a Jakk angel is like the damned Terminator. You can shoot the hell out of them, set them on fire, blow a limb off, and they'll just keep coming.

I think a bullet in the head would upset their day, but it'd have to be like... point blank. And I think maybe magic besides.

To be fair, I would think the angels of most planes would be that way. They'd need to face something of equivalent power and ability (e.g. demon) to permanently injure or kill them.

I would think that Jakkard, in having magical guns distributed among the populace, has a higher proportion of natives than normal that could possibly kill an angel. Keep in mind that possible does not mean probable.

Of course, that's just my impressions with it, not any official answer.

I dunno, I think Jakk angels might be able to take more punishment just because it IS easier to damage them.
Most angels that I can think of would probably get put down pretty quickly by a sword in the gut or an arrow in a sensitive place, but the Jakk angels getting a bullet might just piss them off.

I mean, that's just my take on it, so take with a grain of salt.