For my personal site I’ve toned it down a bit. Instead of a flashy sidebar image, I chose a solid background color. However, I’ve given certain pages big sidebar images, and let Hydejack blend back to normal when the user navigates away.
While I love the font used for Hydejack’s headings, for my personal site I felt less of a need to control the typesetting. That’s why I’m not using Google Fonts, and instead use whatever is the default for the reader’s operating system.