If you look at any site which you consider has a good quality design, there's one big difference that it has to your own site: it uses images.
Lots of images.
That's the key to good design that most engineers don't understand.
Yes, there is elegance in Google, reddit, news.yc, etc, and yes, you can go way overboard with really bad image picks. But if you want to go for something other than 'minimalist', you should find a good personal collection of (non cheesy) stock photos, subtle patterns, gradients, edges, icons, and corners. Get some simple photoshop retouching skills too.
Seriously, learning how to use images effectively will take your design skills up to the next level.