Scanned with GF, exported as SVG. Now I can't clean up the image?

I scanned a handprint with my GF and saved as svg file. Now I have it open in Inkscape but It won’t let me clean any part of it up. I can’t see any nodes or anything.

What am I missing?

A scanned image is a jpeg, even if it is inside of an svg file. Perhaps try cleaning it up in photo editting software or trace it in Inkscape.