I must say that the draft isn't really what I had in mind.
I don't want to sound negative, but there are several issues:
1st: The cast
Sumiko would make a great heroine in my opinion too.
But I think the number of contributors won't be that big, so each should have the right to pick one henchwoman. My pick would be none of the suggested, who are all a bit too skinny for my taste. I'd rather see a bigger, stronger henchwoman. From the regular SKW roster, Cameron is may favorite.
2nd: The plot
Sumiko is good, the others are evil. But we see her invade their house with a gun. Somebody tells us that they are evil, trying to take over the world. But Sumiko is working for a rather shady entity named "US government", I wouldn't trust her either.
Instead, they should be presented as clearly evil by what they do. Let them invade Sumiko's house, steal a computer device (what's on it isn't really important) and try to torture Sumiko to get access.
3rd: Uniform vs plainclothes
The way it's presented, with just one short fight without wearing the uniform (and even then, they carry it in shopping bags and talk about it) it looks like a mere alibi to me.
Not only should the non-uniformed part be a bit longer, the point isn't just to see them in different clothes, it's to present them as individuals. So I think the shopping, or whatever they do, shouldn't be related to their henchwork.
4th: The fights
It may be better to tell Sleeperkid and the girls what moves we want to see, what reactions, body positions etc., but give them freedom to place these actions in the various fights at their own gusto. Generally I prefer longer, more physical fights, not just quick knock outs.
5th: The end
At some point earlier, the bad girls may say that they desperately need to defeat Sumiko, or they're in deep trouble - facing either a harsh punishment by their superiors or a lenghty prison term. Later, to make clear that the final fight is really the end, Sumiko informs somebody that "some disposables are waiting for disposal."
So, my idea of contributing is that I name a henchwoman (like Cameron), decide what she is wearing in the early part and pick some moves she is giving and taking, reactions etc. To make her fit into my favorite baddie pattern (evil by trade, likeable in private), I would let her use a cellphone once or twice, organizing her home life between the battles.