Love the panel quilts posted!
Anne, I can recommend
https://www.equilter.com/ for great layouts for panel projects. Just go to the free patterns tab and you will find many.
Another option, go to the manufacturer web site listed on the panel, (i.e.
http://www.northcott.net/pattern.aspx ) if it is a somewhat current line they usually have one or two free pattern options you can down load. Look forward to seeing what you come up with!