Try repeating sections of the chart to create larger blocks of colour. In this case the chart was worked once then the first five rounds were repeated. This has little effect on the tension and the vertical stripes may be more flattering on the leg.
Adding a two-row stripe in a single colour gives a break from the Fair Isle knitting and increases the definition of the motif, while purling the second row introduces texture. Working the stripe in blue or green would continue the water theme. This will effect the stitch count slightly but not enough over 64 stitches to require any adjustment.