First Serious Try at a Realistic Model / Render

 From:  SteveMacc (STEVEH)
If you want to make a more realistic render, you will need to fillet or chamfer all the 90 degree edges that are visible. The renderer then will pick up highlights on the edges and it will improve the final product immensely.

When you produce drawings for production, the rounds and chamfers don't always have to be modelled as they are often implicit in the production process. When modelling for rendering, you will have to add them yourself.