It is a rather plain header. Adding more style will add more zing. But you really need a logo for branding purposes. This though will require you to think hard. I would suggest for logo making you do a search in Google on making logos and take some tips and apply them when making your logo. As far the current banner, you need to figure out a look your going for and figure out a way to apply it. Your asking for more that technical advice, your asking for artistic advice which very subjective.
I would have put in a drop shadow and maybe a page curl. I really don't understand what you mean "Photoshopped in" as it has just been added to the page using a link to the photo. Think I would have set the scrolling element's background to transparent so people can see the nice background image used. You may have to adjust the color contrast for text, etc. if you do. These might help: