I think people are usually on the fence when it comes to "royalties" or "oh you'll get a percentage of what we get". It's just unreliable and people need to pay their bills, so working for free isn't usually an option. Your best bet is to find somebody younger, a high schooler/college student that doesn't need to work full time and might do art for free.

I am still looking for work.

Her facial features are (still) very masculine... Mouth, chin, nose and eyes, brow, jawline... Her lips make it look like she's pressing them together, the nose looks too big. The length may be fine, but it's too wide.

The shading on the left side looks okay, but on the right side it kinda looks like it's been painted, like David Bowie in the Alladin Sane album cover.

It's a hard face to pixel, I've tried multiple times and failed, so it may take a while to get right. But I would put more time in it to try and make it look like her, because it's such a cool character and goes so well with your Ripley portrait.

As for the body, I think Boraka's thread has a great example of how you could shape that in terms of clusters of colors.
Studying it could help you with the hair too, I guess. Maybe you could bring the ponytail forward and over the shoulder like one of your references? You could then use more colors and define it a bit further.


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EDIT:



There, a bit more feminine.
Smaller nose, thinner neck, fewer expression lines, smoother face and rounder, softer lips.
Smaller eyes and irises, and the little highlight in the eye pointing towards us, which somehow makes it look like she's looking in our direction (yeah, I don't know either).


Before/After:

I’m in search for a graphic designer for my game Battle Arena : (https://play.google.com/store/apps/details?id=com.BattleArena.com&hl=en). I already have some graphics but I would like to add some new characters in the same style and more tiles.

Battle arena was already 500 000 downloads and more than a 400 downloads a day, but new graphics will enable the game grow even more.

I think it’s a great opportunity for a graphic designer to have since it will expose your work to an already existing large public.  All the graphics I use in the game will be credited.

I don't check this forum much so please send an email at diogo.valdivieso@gmail.com with your portfolio if you are interested.

Thanks in advance,
Diogo

If you're interested, shoot me an email at oijosma@gmail.com