You just go to the website, look at the art, choose which one you want, and then send an email to her through the website for details on where to make your donation.
I had both of my girls look at the options and choose one. The tie one below is my oldest daughter's choice. I want to put a picture of her above it to make it look like she's wearing the tie. I think that'll be cute. My younger daughter chose a heart picture.
Here's the website: http://canvases4jesus.wixsite.com/canvases4jesus