Varying the colors of multiple strands held together gives the pullover an appearance of gradually changing colors (shown in ColourMart Diamante sherbet and sun).
The feel and the hand of the fabric made with different stitch patterns vary substantially with different needle sizes used. The top of the pullover is more fluid and open (almost lace-like appearance), whereas bottom is knitted on smaller needles and is much denser.
TECHNIQUES USED: cables, applied i-cord (great instruction for how to knit an applied i-cord can be found in this video: http://www.youtube.com/watch?v=B_nIxVBiokw&noredirect=1)
or in this Knitty article: http://knitty.com/ISSUEfall06/FEATfall06TT.html