You did a pretty good job on your turtle. I found a cute little paper pieced turtle at
http://www.paperpanache.com/free/simplereqs/turtle.htm
I paper pieced 2 of these for mug rugs for my nephew and his son (my nephew's nickname is Slow as in he is always running behind schedule. he has a chain with a turtle on it that has a baby turtle inside to represent his son - so that's why I chose turtles). I decreased the size a bit to make a five inch square and centered them in the mug rugs. they were well received. the pattern was quite easy to follow.