Would this be copyright or trademark infringement. I am inspired by SE's design, but wanted to check.
closed as too localized by Josh Caswell, animuson, jmort253, Toon Krijthe, Bart Sep 17 '12 at 12:19
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I am not a lawyer nor do I play one on TV, so I can't really approve your design, per se. But the Trademark law is there to make sure that a reasonable person would not likely confuse someone else's sites with being a product of Stack Exchange. Our Trademark Guidelance is to help you make sure your site looks sufficiently different to call it your own.
There are tons of Q&A sites out there that look virtually identical to ours in terms of layout, etc. We didn't invent the concepts of voting and wiki editing, but we feel that we've combined these elements in a way that makes them somewhat special. The biggest problems come when sites start reusing our our logos, CSS, code, or other non-user-contributed content without permission.
The key issue to consider is whether or not your site could be confused with ours. On the surface, I would suggest changing the name "Flux Exchange Network." It's pretty close to "Stack Exchange Network" as well as the speech-bubble-like logo. That would be a good start to clear up a lot of the any ambiguity and confusion.