Write Happy Thoughts Journal Design

I designed a couple of journal covers as an for an assignment, I'm studying an online design course, this is a mindfulness journal, intended for writing all our positive memories, the good things that happened to us today, positive mantras etc, so that when we're feeling low, we can dip in and read a page or two to lift the spirits! My question is, should I also design some happy stickers to go with it? Also, sidenote, what is with the awkward rectangular frame for our shots, I'm not sure how I'm supposed to fit my artwork into that 🤔