2nd embroidery attempt

[deathbyuzumaki.livejournal.com]

This is my 2nd embroidery attempt. I just wanted to practice some more before I actually attempt a real gift. I plan on embroidering my boy a pillowcase he can sleep with since he lives oh so far away. I plan on doing sea creatures theme.
Here's one that I made
Does it look like a stingray?

disregard the lack of ironing
for all you people who embroider, do you have any tips for making the back not all shitty or any tips in general?