Just play with the lighting a bit more, use a depthmap shadow on your main light. This will give your render some more depth and pop out some of your geomerty.
eXistanZ, its not bad!!! This is his first render and compared to mine when I first started its not bad.
I am enough of an artist to draw freely upon my imagination, knowledge is limited, imagination encircles the world. (Albert Einstein)
https://www.artstation.com/kurtb