I need help making a couple picture! I need tips

There’s a story I wrote called Love & Life, In the story there’s two characters that really like each other and at the end of the story they start dating and I really want to make a love picture of them together cause it would look so adorable and cute. Their names are Anna and Cody. I would really like some tips on how to make an art picture of them. I’d want to do it on the computer rather than on a mobile.