Here is a drawing I did of my main character and her oldest friend. Obviously, my (Y/n) - or as I call her, Yin - whom I regard as her own character, is different from yours. In my vision, she has long pinkish-silver hair and red eyes. She has slightly tan skin as well. 

Your Yin might have green or brown hair or she might have white or black skin, and that's up to you. She might also be shorter or have more of her to love in your eyes. It's just that I drew her the way I see her. That's all.

As for the meaning behind the drawing, there is a secret (or maybe a lack thereof). See if you can find it.