I took the picture of the flower from my front yard intending to use it somewhere on my website... so I finally decided to make it the main graphic hehe. I was going for something simple as well. Good enough? Needs more? Comments welcome.
I think it looks awesome. I really like the color of the flower. Since it's a photograph, it doesn't need much more. You could add some text affects, such as a drop shadow(lighten). But overall, it looks really good.