@Peter-Jarvis I don't mind at all. I'm finding everyone's feedback incredibly helpful. I like what you're saying about the forward movement. I'll add in some atmospheric perspective, lightening up the girls/rocks as they go back, and see what that does.
I'll have to play around with the girl reaching for the butterfly. I struggled with this early on, and I guess it shows. I initially had her reaching forward but worried about leading the viewer off the page. Then, once she was reaching back, the right side of the page looked blank so I added another girl. Maybe if I just darken out the right side a bit... hm...