It took me about 2 years of working on my calves until I got them to look good... or at least good as I see them.

A lot of it has to do with how you're resisting the weight, make sure you're using the ball of your foot. Make sure you go all the way down and have your feet point slightly in. The bulk of the calf muscle is on the inner side of the shin, so this makes sense.

It worked for me.