I just used some of my favourite little stamps that I have had for ages from Imaginisce and added a little sentiment from an older Inkadinkado stamp. I coloured each of my stamped images using my Spectrum Noir pens.
Jennifer McGuire used some nested dies with stitching for her cards, but I did not have these, so instead used my Silhouette Cameo and found some stitched nested designs on the Silhouette Design store.
I cut out my designs and then layered them with foam tape. To add variety I added foam tape to different pieces to put the different frames on different levels. I really like the result.
Here is Jennifer McGuire's video. I hope it inspires you too...