The two important elements here are the diagonal and the reducing size. I've used Simply Sketched and Perfectly Preserved to create my card, I hope you can see the sketch
I used Promarkers to colour the image and my Stamp-A-Ma-Jig to get the positioning just right.
I'm not in need of a sympathy card, luckily, but I like to have a couple ready. I like this design very much, funny how sometimes it all just clicks so quickly into place. Usually I'm still working on my cards hours after I start!