There's a misconception among some clients that renderings happen at the push of a button. In the gallery below you'll get an idea how much craft the artist puts into final images *after* the rendering is generated from software like 3ds Max. 

Why not create the rendering perfectly in 3D?

Using ProExr with Photoshop to bring in Multi-Layer EXR straight from your renderer helps reduce time & keep files to a minimum. It's my favorite way to get renderings into Photoshop.