#6 is much more to my liking. The biggest problem I have with it is the font used for superstar... it's too difficult to read... perhaps a little bit too "graffiti-ish". The gold star should be a little bit bigger. I like the subtlety of the gray stars in the background, adds "pizzazz" without being distracting
I apologize, I misspoke. I didn't mean the gray stars to be bigger, but the GOLD star, the one framing the dog's head... right now it kind of looks like a star collar, like one of those cone collars. Try making the inside of the star out from the dog's neck, a shape more like entry #15. The font is alot better!