This is not our first peek at the next iPhone. The images are actually renders by Martin Hajek. Sonny Dickson, who previously leaked an extensive number of parts for both the iPhone 5C and the iPad mini with Retina Display, posted a series of new photos to Twitter that purportedly featured components from Apple's next iPhone. Though Dickson drew attention to the photos, they appear to have originated from an anonymous leaker on Twitter, who includes several full photos of the purported iPhone parts. In the full photos, a new design is clearly shown with a larger display and no bezel on the side. Bezel on the top and bottom has narrowed significantly as well. The design wouldn't be out of line for Apple and it aligns with what early reports of the new device have described.
Previous reports have suggested that Apple is planning two larger iPhone models for this year, potentially with displays around 4.7 inches and 5.7 inches.
Correction: This story has been updated with evidence that the iPhone 6 images are fakes.