What kind of duck are you trying to carve?
Google image search that duck.
Print it out on a big sheet of paper (lifesize) and cut around the body.
Use that as a profile pattern.
That'll get you going.
Also, there are free patterns over at
www.mightylayoutboys.com
To me it looks like you're not using a pattern.
Not meant as an insult or anything. My first bird was real bad... basically a block (looked kinda like yours). Use a pattern, take a keyhole saw and cut it out, you'll be glad you did.