It is a little over sharpened. The reason for this is; you are looking at it in it's original size (if you've clicked the thumbnail), scale this down to the actual size of a sticker, and much of the details will be lost to the eye. You can actually see this looking at the differences of the thumbnail here (above) and the full size (click the thumbnail). Try printing it on a 1in. x 1/2in. piece of photo paper for example.
What I gathered from feedback since the first image, is that I should:
1.) go with less text (eliminate clutter)
2.) less distinction of the top and bottom (I made it all one piece, replacing bottom to match top)
3.) More contrast on the text (I'm assuming this is to help it stand out from the background it's on)
4.) lots of encouragement (thanks for those

)
that is pretty much all I have gathered (did I miss anything?), and that has lead us to the 3rd image. Next image I will go with less sharpness, not sure on the direction of the contrast at the moment. I am aiming to make this appealing to everyone (within reason

). In order to make the next image even better, I am looking for more direction from the community. More ideas and alternatives are indeed welcomed. I encourage anyone who has a graphic, to contribute, it might end up being the top choice, you never know.