Nice deep, close to shore gutter behind her, wish I was there with my rod and a few pilchards.
Afterwards I would get my thicker rod out and get that smelling like fish as well.
Anyplace that has wide or grand format printing equipment. Lots of options. You could go with a print onto a laminated background. Or, you could go die sublimation onto fabric/vinyl and stretch. You can also look around for "self adhesive posters" and then mount it to whatever you want. Meaning - cardboard