There are several questions that arise from your comments. First, we all started where you are now. The thing to remember is that if you don't like something, you don't have to leave it that way. If you are unhappy with the logo, get a different logo and replace it. Just upload a different one and then re-select it. This all takes a lot of trial and error. You do something. You don't like it. Delete it. Do something else. I notice you still have one of the stock photos in the header. If you like it, that's fine, but you're not required to use it.
Have you run through all of the color schemes? Have your tried all of the header templates? Changes are just a couple of clicks away. Keep at it until you get things the way you like them. That's the advantage of this system. You can change things on a whim. In the old forums, I did an exercise with the combinations of tools provided and determined that there are several million design possibilities with the built-in features. The custom possibilities take it even further. I think another thing that is helpful is to be curious, bold and willing to explore around all of the tools and see what the possibilities are. Make a test page off-navigation where you can experiment and try things.
I will go and see if it is possible to delete a logo...
OK, Open the Site Designer. Click on "Logo" to open the dialog. Scroll to the bottom of the images and click on "No Logo." Click on "OK."
Come back if you have any other questions. That's why we are here.