Hi! No, it's not default. You can customize your character's appearance early on. If you see gold text (not at the end of the page, but in the middle of a paragraph), you can click it and cycle through the options. These options appear on the third page of the first chapter. The height option will appear in a later chapter in the same way.
Thank you for your kind words 🫶 Don't worry, I'm actively working on it every day, and it's my job at this point, lol. This story won't be finished only if I die.
I haven't written other ifs yet, but I will. Thank you for your interest! 💛 There are other great interactive stories that are being frequently updated that you could check (I have my favorites in my public collection).