Muffin Girls

SO this is a drawing showing a twelve year old version of my Batman/Gotham OC, Mandy, in an alleyway, giving muffins away to both Selina and Ivy. Originally it was just going to have Mandy and Ivy, but I figured I'd add Selina just so all the girls would be together. Also, you'd think it'd be difficult for me to draw both Selina and Ivy since I'm drawing the real actresses, but nope, drawing Mandy was the real challenge. I haven't drawn her when she's younger before, so I hadn't the slightest idea what to make her look like. Every time I tried drawing her face, it kept on coming out making her look mature and older. SO much erasing happened on her face; it was really pissing me off. That, and once again, like always, hands were a challenge - as well as feet/shoes. Why must they be so hard to draw?! URGH!