Someone asked me yesterday what the difference was between the SU Canvas and Linen background stamps. She wanted to know which one was better, did she need them both, and which one did I use the most? I told her though similar, they give much different effects. I tend to use the canvas more often but that may be because I've had it longer and haven't had much time to play with the linen yet. The canvas can be either funky or rustic depending on the color and how it is applied (fully inked or light and spotty). The linen background really softens an image and looks best with watercolored solid images I think.
Anyway - it got me playing with them both. I want to make ATCs (artist trading cards - 2 1/2" x 3 1/2") showing both of them. I got the linen one done but was distracted by my funky and fun new Big Blooms set from the spring mini. So that's what I did with the canvas. The canvas ATC will have to come later.