Twisted yarn is a great way to make a knitted garment look less flat. This very thick twisted yarn instantly gives a whole new look to a simple cable pattern, and makes the pattern more visible and look more complicated than it really is.
There are many ways to go with twisted yarn. Think about twisting melange colours with solid colours to get even more depth in you colour range. Or how about a very thick yarn twisted with a few strands of very thin yarn in contrast colours. If your yarn already has the complicated look, a very simple stitch is all you need to make a garment look amazing!