You've just pulled this awesome felted sweater out of the dryer and you're so excited to make something with it but, oh no, it looks like a piece of fried bacon! Relax. You can fix this. The two yarns used to knit the sweater in the pictures did not shrink at the same rate, the black shrank more than the magenta. It didn't cause a problem in the checked areas because the color is distributed evenly. But in the pinwheel pattern there are long black floats that tightened up and made the fabric pucker. Here's the fix:
On the wrong side, carefully slide the blade of your small scissors under the black floats without catching any of the magenta wool and snip them. Take your time so you don't accidentally cut through the magenta layer. Then give the whole thing a good shot of steam on both sides with a hot iron. Now gently pull and stretch the piece until the pattern looks straight and give it a press. Since the sweater was well felted, snipping the floats hasn't really weakened it. Problem solved! This sweater also came out too fuzzy and a bit linty and it's obscuring the pattern so I'll give it a going over with my trusty clothes shaver.