Here is my comment about using VW as a modeler tool for perspectives. Vectorworks at this point creates very reliable Boolean operations, nurb shapes, test it, not just with simple plane surfaces, try a curved roof, model a spoon, organic forms in other words, and then play with other application and see if you can get to the same level and the time ad knowledge that takes.
Renderworks has a decent style but the key factor here is to understand how the light affects materials, bounces of indirect lights make huge improvements that drives you away from the cartoonist look or amateur finish as some would say. To achieve this, I would suggest to start using HDRI backgrounds, specially on exterior shots and is all part of Renderworks. ( see attachment, modeled and rendered in 6 mins) I know this because we usually prepare quick competitions on fridays and see who models faster, ha ha.
Then, if more realism is needed and moving parts are a most to help tell the story, well, I make use of my plugins and export them to Cinema 4D or Artlantis Render, depending on the mood of the day.
Hope this helped.