Current public theme vs. Berlin

Hi,

I'm creating an online exhibit and had chosen Berlin as the theme because it allowed me to insert a header image, which the current public theme doesn't. However, in Berlin, clicking on items from the exhibit page leads to individual item pages where the image is all the way of the bottom of the page. In the current public theme, clicking on items from the exhibit page leads to item pages where the image is at the top, which is much better.

Is there a way to reconcile these two elements in one theme?

Thanks very much.