Is my best not enough? Help me determine.

Hello guys,

I know the logo market has become a very tough place to get accepted, and after each rejection, I decided to give it a last try. By working on every last detail. The logo i submitted had a pretty interesting concept, it can attract potential clients, and no such concept exists in the marketplace as of now. Also, I worked on the preview too, thinking might have something to do with the previous rejections, and needless to say I still got rejected, which is why I am writing this in the first place. Below you can find the preview to the file, the technical side of the logo is correct, since I have other items accepted here, I know the technical side well. I am looking for some constructive feedback if any of you guys have some minutes to spare. I would really appreciate your help, as I am really looking to improve my work and get accepted more frequently on GraphicRiver.

Looking forward to your support,