Banner for 12U Girls Fastpitch team

I have little Photoshop skills and was going to make a banner for my daughter's softball team. But I was told we need it sooner, and I'm not fast enough. I need the banner in a 3 foot by 6 foot size that looks like this: [login to view URL] with lighting background and white curved bottom and the girls placed around the curve just like the picture. I will supply you with the girls (they need to be cropped out, here is one example, [login to view URL]). I just need you to create the background or find a nice image to use as background. I do not have the logos yet, they will be given to me soon. So, I need you to start with putting this together in Photoshop (I have CS5 but I don't think it matters?) and I need the Photoshop .PSD file to finish with the logo when I get them. Maybe