This image was made using nurbs only and it took 8:02 mins to render using the maya software renderer on highest quality. The low quality render would have been good enough for games though and it took only 25 secs to render on my silly laptop.
As for the dragon you can convert poly to nurbs very easy and it usually looks better as a nurbs.
As for the dragon you can convert poly to nurbs very easy and it usually looks better as a nurbs.