It looks great!
When you do a color change, it is always comes out uneven. To make it even, next time, knit one round in the new color, and on the 2nd round with the new color, pick up the stitch from the row below (old color) and place on left needle. Knit that old stitch with the stitch in the new color on the second round (K2tog). It is called a jogless join or something like that. Hope this helps!