It looks cozy to snuggle under on the couch and isn't that the whole point? It looks good but you might have better luck if you try a few things.
An 80/20 batt is more stable to machine quilt with. I gave up on pin basting and use fusible batt or 505 basting spray. Some people like Elmer glue basting but I have not mastered that yet. For gentle curves a walking foot is helpful. When stitching down a quilt, you need to reversed the direction you stitch in every other row to prevent the quilt from shifting.
If you did all those than chalk it up to experience, finish the binding and move on. In my at least 30 years of quilting, I have yet to make a quilt where everything is exactly how I want it. Cute munchkin!