Four changes I'd like made to the Eve splash
The Eve teaser image is, in my opinion, dead on what Eve should be; scary yet sexy, visceral yet ethereal.
https://i.imgur.com/ZQrSRjv.jpg
Eve in the splash art doesn't quite hit it, so here's how I advise altering it.
Eyes
Make her eyes glow like in the teaser; change their structure and color.
What most people have been saying, that the teaser eve had no pupils, is not actually correct; it's just that her pupils were very large and colored differently than human eyes. Look closely: the whites of her eyes are a dull white-grey, her iris is a thin band of bright bluish white (much more pronounced in the left eye), and her (extremely dilated) pupil is a bright, glowing white.
Cat eyes with pale-yellow irises just isn't nearly as cool as the teaser.
What makes these eyes so damn cool is that they contrast the innate attraction that we humans have towards dilated pupils (like how we find a cat cuter when it has fully dilated eyes than when it has its demon-slits equipped) with the unsettling effect that her glowing, inhuman eyes have on us.
Mouth
Make Eve's lips smaller, and show off those fangs a bit.
In the teaser, the lips serve two purposes: to bring attention to her facial features (the lines on her face, her fangs, and her eyes).
They are the secondary focal point of her face, next to those eyes. Don't have them steal the show.
In the splash, they were changed to just be big like everything else, seemingly for the sole purpose of saying "yup, I'm thicc everywhere". Now, as an ass man, I cannot honestly say I don't like things a bit thicc, but in this case there are better things to show off than her lips.
Make the lips smaller so they don't distract from the eyes and (eh-hem) other bits too much, and part the lips so we can see the cool little detail that is her fangs.
Clothing/hair
Make her hair a little bit longer, and ditch the rubber lingerie for more of those shadows.
No, I am not here clamoring about how you're sexualizing Eve. That's kind of her thing. That said, I'd much prefer you did it like you did in the teaser.
Compare her clothing in the teaser to her clothing in the splash. In the the teaser, she dons nothing but her hair and a very thick mist. That's a really fucking cool effect, by the way; props to who ever made it. In combination with her pasty complexion, it makes her seem almost like some kind of ghost; something that clashes beautifully with her absolutely BRUTAL claws.
In the splash, those aren't shadows. That's rubber with some purple glitter thrown in (and elbow blades, for some reason). You can still see a small amount of the misty-shadows at the very edges (mostly at the top of the left glove).
The tentacles should also be made a bit more misty, but that's less important.
Color
Change the glowing parts to the teaser color, and tone down the glowing.
The splash uses a very bright purple. This makes her seem like something alien from the void, not something you are going for. Also, the sheer brightness of the glow these parts give off alter the rest of her color palette far too much. These parts are meant to be highlights, but that doesn't work when they just bleed into everything near them.
The teaser uses a pale reddish pink. It gives of an air of femininity from its presence on her lips, while still seeming malicious from its presence on her claws and supernatural from the fire on her goddamn head. The glow is also much less pronounced, meaning the highlights act as the fine brush they were meant to be rather than a bucket.
As a side note, Eve is a stealth assassin. Why is her head on fire? It's a cool effect, don't get me wrong, I'm actually just curious on that one.
