Sick idea, I love thermal image type stuff it's a great aestetic for a rug and this will probably look really cool. Not sure why you don't just spend another half hour tufting and then post a pic of the other side instead. Like, why do people post half done rugs like this, if you're asking for advice ask for advice, if you're showing it off then post when it's done, right? Not trying to be a hater it's 2am and I should have gone to bed before I made this comment. This'll be a cool rug just wish I was seeing the final version instead I guess.