Wanted to add one more thing:
I just saw a Ricky Tims video today where he put in a row of stay stitching 1/16" from his marked stitch line before cutting his 1/4" seam allowance.. That allowed him to piece on the bias without too much stretch. I'm going to try that the next time I'm piecing on the bias. Thought I'd share it with you in case you decide to cut on bias to put minions in upright position. Good luck! It's a cute panel!