Zoey test sprite sketch (Patreon)

“Zoey is an attractive young woman with a tomboyish demeanor bordering on mannish. That’s because until recently she was a man. She’s currently stuck as the idealized female version of her male self thanks to an insane phone game she began to play without knowing the details. That same game is the only thing that can change her back.”

“She’s a natural beauty held back by an overall lack of feminine grace, though she’s surprisingly good at acting like a girl and enjoying it more than she expected.”

• A 20-year-old female with a youthful appearance and slightly above-average height (170cm/-5’7”).
• Weighs 55kg/120lbs, which is between skinny and average weight for a girl their age and height.
• Bust-Weight-Hips measurements: 92cm/36" - 60cm/24" - 88cm/35" (so yes, her cup size is at least a 34DD if you use U.S. sizes).
• Her straight black hair is always slightly messy and goes down to her middle-lower back. She has no idea how to manage it.
• Their dark red eyes, while not unheard of, are distinct enough to be a defining feature.
• While their "girly" face was unusual for the male Zach, when it belongs to the female Zoey, it manages to strike a good balance between "cute" and "sexy." Even though her expressions are "boyish," she looks good naturally without any makeup, though when someone who actually knows what they are doing touches her up with makeup, she enters the realm of beauty usually reserved for supermodels and high-tier actresses. 

Unusually, their college requires both their male and female students to wear a uniform to classes. Their are very few exceptions to this rule. The student manual's female dress code describes their Fall/Winter uniform as this outfit:

• The main uniform top is a sports blazer which is predominantly a very dark gray that’s close to black (Hex #201910).
• The lower half should be a navy blue pleated skirt of respectable length (Hex #312b5a).
• A medium gray jacket liner (Hex #5b5e66).
• Both the uniform accent colors and short neck tie must be red (Hex #eb3f3a).
• Undershirts must be plain white.
• A belt of some kind is preferred but not required.
• Tights, pantyhose, and leggings are permitted during the Fall/Winter seasons, but nothing ostentatious or distracting can be worn.
• If socks are worn, they need to be white with a length above the ankles but below the mid-calf.
• Shoes are to be shiny black with heels no higher than 4cm/1.5".

This is a test sprite sketch (which was done by the very talented Avaloki on DeviantArt). The plans for the full sprite set are:

2 poses with 3 arm variations each:

• Facing almost directly out of the screen at a very slight angle (both arms dangling; one hand on the hip and one arm dangling; and both arms crossed under the chest).
• Facing at an angle 30° to 45° from looking out of the screen (one hand resting around the solar plexus and one arm dangling; one hand on the hip and one arm dangling; and both arms crossed under the chest ).

3 hairstyles for each of the 2 main poses:

• A single ponytail that goes down to her middle-back with a single hair tie or scrunchie holding it in place.
• Somewhat wild and straight "untouched" hair that goes down to her lower back with a few loose strands in places.
• A Short-to-medium straight bob with side bangs (imagine someone who has no earthly idea what they are doing cutting large swathes of their own hair with non-specialized tools like regular scissors or a knife yet the results aren't disastrous and actually make a cute tomboy haircut).

7 outfits that works for both main poses:

• Male Student Uniform (that doesn't really fit the girl who is wearing it).
• A baggy outfit designed to hide of much of her body as possible and not draw attention (though it fails to do the latter).
• Male slim fit dark blue denim jeans and a size-too-large white t-shirt.
• Women’s skinny black denim jeans, a brown leather belt, and a short-sleeved women’s t-shirt (with the option for a version with a dark blue women’s sports coat). 
• A burgundy-red ribbed women’s turtleneck sweater and a navy long flared plain skirt.
• Female School Uniform (that fits the girl wearing it extremely well).
• Nude sprites (both with and without homemade chest wrappings that are meant to compress her giant boobs).

38 total expressions (with 19 each for the 2 poses)