My first go at making a sprite...

[Sevenstitch]

I'm assuming that this "sprite" was originally a full size image that has been scaled down, correct? I'm afraid that isn't how you make a sprite.
The first giveaway is that there is an extreme abundance of AA, and the palette has like, over 100 shades of orange.

Spriting is about pixel control, and this has none, as it was a resize. Try spriting the same thing at that resolution, without resizing.

As for the Sprite itself, it's an orange ball with legs. Nothing much to critique design wise.