For professional quality work no one really stops at sketchup.
I suggest trying some things like Vray if you just want to render a still image.
If you want to have a rendered scene you can fly around in then try a trial of something like LumenRT or Twinmotion. Both very straight forward just import sketchup model and play.
Or if you want to stay in sketchup try the lightup plugin, its powerful but requires more personal tweaking than the two programs mentioned above. Also I don't know if that has a trial I haven't used it for some months.
DESU sketchup imports to most things quite nice. If you are familiar with texturing on maya or 3ds max you can produce nice final things through them..but sometimes the model doesn't come over well and then you almost have to remake parts plus do all the texturing.
At the moment I'm using twinmotion and I like it. Very easy to take a model in get some pretty shots to update the client.