Sea Goddess

Hi! I might have an unusual request but I am a writer. I have a story that I'm creating on wattpad and seeing as more people will read it if I have a cover, I was wondering is I could get permission to use work of yours, specifically this one? I totally understand if you say no, I don't want to force you into anything. I do not plan to have this story or your art benefit me for profit, I simply want people to be more interested in reading my own work. If you want, my username on here is the same as my wattpad account, though there's isn't anything on there currently. Have a good day!