If you look close enough at the photos of LittleMiss' jersey, you might be able to see the picture stitched on the pocket.
It's a unicorn done in duplicate and chain stitch.
The talented Tanja from Watermellish designed this chart specially for the Red Riding Hood Yarn's Winter Yarn Club that I took part in. It was the first time I'd done a duplicate design like this and I'm really pleased with it (so was LittleMiss).
Make sure you check out her website for more designs (including free ones!) and lots of tutorials to help you out. If you're a knitter and never tried duplicate stitch before - it's a lot easier than you think!