Well, first, you need to decide on the story or theme you want to convey through the comic. Then, using apps like Procreate or Canva, you can manipulate the picture, add text, and draw additional elements to transform it into a comic book. It takes some creativity and practice!
You can use some graphic design software like Adobe Photoshop or Illustrator. Just import the picture and start adding elements like speech bubbles, special effects, and backgrounds to make it look like a comic.