it can be specific to body features common with being trans or just general photography technique in general, no matter how basic. example photos are ok, but we do not demand them. just thinking this would be a helpful thread to have !!
a tip of ours (for those femme-leaning at least):
having the camera from a more top-down perspective seems to make the jawline look a little nicer. this is true of most others in that they look skinnier, but it especially seems to bring out the femme look in our experience.
Only experience is for myself, transfemme:
Try both sides of your face. I have found that on a day to day basis my “good side” tends to change.
Also I was always annoyed, that I liked my reflection more than the photos I took until I added a depth of field effect while taking the shot.
Try out different light! Weather I like a pic of me can vastly change depending on light source, intensity and angle.