reference explanation

Howdy.  I'd like to request a portrait of multiple characters, namely the three members of a strange post apocalypse homebrew RPG group of anime girls.  After speaking with an artist friend of mine, she's said that adding as many references as possible is important, so I've tried to give you what I can inside that imgur link.  I realize that for the third character doesn't have a full reference image, though, just what I could work together with the player for .  If you have any specific requests for further information I am happy to try and get it out of that player.

Pose wise, I'd ask that it be done in the style of an older family portrait (styleref.jpg).  Included is my attempt at drawing the poses I'd like (poseref.jpg), labelled with the characters.  You can mess with the dimensions, image ratio and poses as you please, and I'm bad at drawing so I probably didn't get their heights right, but "portrait with Character A sitting down beside B and C" is still what I got in mind.

In general, really, do what you need to make it work.

Character A:  Much taller than the others (5'10") and older (17).  Looks as she does in the given reference images (a1 and a2), but with there being two minor differences given that she was rendered in a certain character creation program because I can't draw.  The hat is supposed to be more like a bowler hat (a3) with a rounded top, but still has the flat brim shown in the left side.  The bit where her poofy shoulder sleeves meet the gloves are not supposed to be clipping into each other, obviously (a4), so try to fix that in whatever way you think looks good.  In general, though, use (a1) and (a2) for reference.

Character B:  Very short (4'6") and young (11).  The first image was drawn by the player, and the second by the GM, so I'd ask you to use the pupiless version of her eyes shown in (b1) over (b2).  Otherwise, though, the second image should be good for a reference.  Here's the description as given by the player:  "About 4' 6". Other than what's in the portrait, she has a plain, olive skirt that goes down to the knee.  No gloves though the sleeves have a similar fleece to the collar of the jacket and the sleeves are a little too long on her, though not so much that it completely hides the hands."

Character C:  Between the other two in height (4'11") and in age as well (13).  This one doesn't have any complete references, though I've worked with the player to give some scattered ones at least.  She's wearing a hat that looks like (c1), a too-large-for-her uniform that's like the coat in (c2) being worn over the uniform in (c3), the sleeves of that coat flop over her hands like in (c4), a mechanical left eye as pictured in (c5) and hair like in (c6) but black.  The description as given by the player:  "[Character C] has pale skin, short black hair and green eyes, with her hair hidden beneath a black peaked cap, her short and rail thin frame hidden beneath an olive drab military uniform that had seen better days, and a thick, black coat with the rank Insignias picked off. Her hands are hidden underneath sleeves that are long enough to go past her hands, with only pointed claws sticking out past them. Her mouth is full of razor sharp teeth."
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Apparently including personalities is also a good thing, so here.  In the picture, I figure all three would be looking toward the viewer, A would be smiling gently, B would be blank-faced, and C would happy(er than A).

A: Sweet and forgiving, usually tries to be the emotional core of the group, still not exactly happy with how things are in the post-apocalypse.  Tries to remain positive when others won't, but still ends up sad.
B: Entirely stoic and seemingly emotionless.  Spends most of her time staring at people with her usual bored face, speaks very matter-of-factly.  She does feel emotion, she just intentionally suppresses it.
C: More brash and energetic than the other two, inquisitive and quick to anger when defending her friends.  Very attached to Character A, likes being by her side a lot.