Hovering several yards above the floor is some kind of bizarre purple creature, the dark purple of its tail and belly stark against the almost-white of the rest of its skin. It's mostly humanoid, aside from the tail and a few other details, and curled up on itself in mid-air. 

Taller than anyone else in the room, and only partly because it's floating a few inches above the floor, a skeletal silhouette drifts slowly back and forth along the back wall of the room. It's surrounded by a haze of black fog, dense around its body and thinning rapidly until only a few wispy tendrils make it as far as the wall a couple of feet away, and appears to have an approximately humanoid shape with long hair and unnaturally long skinny arms. Sometimes the fog shifts to reveal what looks like part of an obsidian ribcage, or a shadowy, featureless face.

It or something near it seems to be making a faint sound, just on the edge of hearing, a kind of distant staticky whisper that fades in and out in an irregular rhythm, never getting loud enough to resolve into intelligible speech.

A much less unsettling humanoid figure is huddled in the corner of the room, closer to the apparition than to anyone else, very much with the attitude of someone who is nervous about the apparition but even more nervous about all the other people.

A little ways away from that person, directly in front of the apparition and taking no particular notice of it, there stands a... woman, more or less. She appears to be human from the waist up and a giant spider from the waist down, with ten limbs in total, wearing a long-sleeved black shirt on her upper body and a few silver bracelets on various of her giant spider legs.

Next to her—well, a short distance away, out of the immediate reach of those long limbs—stands a straightforwardly normal-looking human, somewhat androgynous and incongruously cheerful but otherwise not remarkable in any obvious way.

Just out of reach of both of those two, forming a rough triangle, is a pale woman with white hair dressed like some kind of flapper hobo and trying and failing to hide the fact that she's periodically peering at the shadowy figure. 

A short distance from the pale woman is a tall, broad-shouldered, unfairly beautiful man with his shoulder-length hair swept back behind sharply pointed ears. The ears and to some extent the prettiness are the only obviously inhuman things about him.

Standing with the tall man—very definitely with and not just next to—is another man, more human-sized and human-shaped but equally unfairly beautiful, making no attempt to hide the way he's alertly watching everyone in the room.

Another tall person, this one much less unfairly beautiful, stands near the corner with his back to the wall, fading into the background surprisingly well for someone who's got to be well over six feet. He has his hands in the pockets of his long black coat and isn't moving much.

He makes an almost comical contrast with the small, silver-blonde, white-gowned wisp of a girl who stands a little ways farther along the wall, gazing at the floor with a distant, distracted expression, hands folded in front of her and wearing a pair of long delicate white lace gloves.

Standing closer to the center of the floor and glancing around him uneasily is a shirtless man in black pants with blue skin, three curling horns protruding from his skull, and membranous wings folded against his back. 

At a short diagonal, a man in simple black robes is standing placidly, his arms folded. 

A little farther off a young woman in neat blouse and capri slacks glances around with cheerful curiosity. 

Off at a slightly different angle, there's another androgynous human, looking around with a slightly unsettled expression. They keep rubbing their nose.

Not that far from them, a muscular woman with a swimmer's build in an oddly-cut two-piece outfit that shows it off magnificently is standing at a lazy predator's almost-parade rest. 

And then there's a pair of people who seem to have wildly different flavours of an overall strangely similar oddity: one of them has a fox's face and ears and long soft snow-white tail, and fur covering all visible parts of her body; the other has a bee's wings and antennae and bold black-and-yellow stripes, and glittering faceted eyes; and both are otherwise humanoid in shape and anatomy and the clothes they wear, a silk robe on the fox-girl and something in the vein of an armored bodysuit on the bee. (Neither one is wearing shoes.)

There's a third woman standing near enough by that it's not entirely clear whether the three of them form a group all together: she's not obviously inhuman in any way herself, but doesn't seem bothered by the company she's keeping. Her arms are folded and she's looking ahead with a mildly unimpressed expression.

Just a little ways off, a cheerful-looking buxom girl is bouncing slightly, glancing around rapidly in excitement. 

And a little ways off from her, looking wary but not looking warily at anything in particular is a young woman who appears to be garbed in flowing quicksilver. 

With her, arms linked, is a woman of the same age, eyes half-lidded, looking as though she's intensely focused on something not in her field of view, in worn but clean and sturdy cargo pants and and turtleneck sweater with her hair in a tight plait down her back. 

A very short girl who looks sixteen or so stands nearish the pair, surveying the room with bright eyes and a friendly smile.

A regal-looking woman in a white dress, with long winglike sweeps of fabric trailing from its elbow-length sleeves, stands near the girl; she's picked a spot where the crowd is a little thinner, so that in a room full of people the majority of whom are carefully not standing too close to each other she somehow ends up with a little more room than most.

A redhead with chestnut wings with copper crescents on the primaries is standing close enough to the nearest people to not be wallflowering but carefully positioned so that nobody is in position to sneak up behind her, shielded from view by her wings, partially folded but still extending about a yard and a half on either side of her. 

On her other side, a dark-haired man in robes is glancing around with deliberately but imperfectly concealed contempt. 

Near the dark-haired man is the most unfairly beautiful person in the room, radiating casual confidence in a simple outfit made from exceptionally soft-looking fabric. Her black hair falls in a single braid all the way down her back to nearly touch the floor.

Closer to her than to anyone else, and nearly as unfairly beautiful, a woman with long curly black hair looks around with a wary yet faintly bored expression, like someone who is expecting threats from all sides but has been threatened too often to take any of them seriously.