I really love the artwork. It is very colorful and I think will appeal to a younger audience even though I did enjoy it myself. I think this would be a fun way to get your child to start reading because the pictures are so great and before you know it your kid might realize how awesome reading is.
It kinda reminds me a little bit of that show Witch that was on Disney. Zoe's life changes when she gets a crystal on her birthday. She finds out that she's part of a group of girls who each have crystals and powers that help them protect the world from the darkness. It was a cute and fun read although I have to say the formatting was really strange in the ARC.