It's alright but you generally don't want to center things due to the rule of thirds. It's acceptable in some cases and I'm not really sure if this applies to that.
Either way I like how a you managed to naturally get a DoF effect.
Thanks for the constructive criticism! I have more pictures like it. But before I get out my mountain bike and taking pictures in the woods, What is this "Rule of Thirds?"
Also, My camera has a really helpful selection of modes for things like Close (This one), Landscapes (Low DoF), Portrait, and so on.