You can't apply multiple styles in a single scene in SketchUp but it wouldn't be difficult to combine different image exports using different styles in an image editor. In fact I do that quite frequently.
There were three or four different styles used for this image if you count the shadows as a style.
[image: 6743292439_e1e53c5165.jpg]
Four different styles on this one, too.
[image: 5601922220_e0c573092b.jpg]