Not bad at all.
"I'm going to talk the talk and walk the walk, and you follow me. This is how I want it to look!"
- Dan Campbell 10/5/2015
I like yours the most, but there needs yo be some more definition between the head and the tail. As it stands the tail looks like a growth out of the head. Your design is the best, especially with the font type. Just a little touchup with shading and lines with the tail and it will be perfect..
If you want the .com in there it can easily be done.
2 more variants: