Omigosh you are right, it is wavy, not good enough for the MIL, you'd better keep it for yourself.
lol
I've had that happen and realized it was because I attached the binding a little too tight - I was pulling it taut as I was sewing it on. Dangit. Maybe try hovering over it with a steam iron and see if the steam can shrink those fibers?
Blocking isn't hard to do. I do it in the evenings so the project can sit undisturbed overnight. Spritz it damp with water, massage and finesse it into shape. If you need to use pins to keep the shape, make sure they are rust-proof! Found out the hard way that my yellow flower-head pins are not rust-proof. My tiny applique pins are, though.
p.s. I ended up removing the binding and replacing it, which did fix the problem.