How to do a realistic and world class render in Creo?

Dear Creo Users,

I have been trying to create a part which I like to present infront of other fellow members. So it should be visually attracting. I have tried with render window, render region and render set up  and appearance gallery but cannot get the realistic look I want. Any suggestions or tutorials on Creo Render will be highly appreciated.

With regards,

Soumya Bhattacharya.