Trainer design in the games this borrows from is famously limited. You get a handful of presets and a cap. Pokegirl is the answer to that, an anime creator wide enough to make the trainer you actually wanted.
Face and eyes first, in the big-eyed style the genre runs on. Then hair, which is where the character is decided: the colour range goes well past anything natural, and in this style that reads as normal rather than as a costume. Then the outfit, built around the recognisable trainer shapes, jacket, shorts, high socks, cap, with enough alternatives to leave the archetype behind entirely.
It is the strongest anime creator in a small category. The anime shelf here has thirty-five games and this is one of the few that builds a face rather than dressing a drawn one.
Good source for a profile picture: frame tight, and the eyes do the work at small sizes.
How to play Pokegirl
Eyes before anything else. In this art style they carry the whole character. Hair colour and eye colour should not be in the same family, or the face flattens out. Cap on last. It changes the silhouette and it hides hair you may have spent time on.
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Hogwarts Princesses Frequently asked questions
Is this an official Pokemon game?
No, it is not licensed. It is an original anime creator in the style of the trainer characters.
Can I use the result as a profile picture?
Yes, that is what most people do with it. Crop square and keep the face large, since anime eyes survive a small circular crop better than realistic faces.
Can I make a male character?
The base is female. The doll creator shelf has wider avatar makers if you need male characters.