The VG Resource

I made some sprites of one of the first enemies you see in Yoshi's Story,
The Air Bag

Please let me know if I need to fix anything.

Should probably be, ya know, a circle.

You need to fix everything.

i'm pretty sure he shouldn't be that jaggy. You should really smooth those lines out. Really, i don't understand how people can have such problems making ellipses. It isn't that hard. You know how an ellipse looks like, it's a simple basic shape.
The same goes for the shading, it's way too jaggy. Furthermore, it could use more contrast.

Ok I will update the first post.

Not using the circle tool (if you did that) can help.

The bottom of the box shouldn't be round.