Whimsical Young Adult Fantasy Book Cover

book cover - the novel is a young adult fantasy - with three main characters - a soldier(he has magical powers over earth, dust etc), a spy (she has powers over fire) and a long lost prince who has returned. there is magic, darkness, rebellion, betrayal and so on. Create a whimsical, artistic, eerie and haunting cover image (don't put any people on the image! Make it as artistic as possible and deeply symbolic) also don't write anything, just give an image