How to be a good butterfly style swimmer?

Im a swimer, I can do a lot of original styles. I can do freestyle, gaya katak(sorry, I dont know what that style's name is english), butterfly style, and more. but im good enough of butterfly style. Its always been ugly. How to make it better?

Hi,

Here are some tips:

* The butterfly kick is actually two kicks. One kick is a big kick, with knees bending and kicking out while the body leaps and dives forward. Then, during the glide, the whole body whips the legs into a second, smaller kick.

* Done properly, the butterfly stroke is a smooth, gliding stroke, but you may find it very difficult and tiring when learning.

* Practice the kick without the stroke to get a feel for using your whole body. Extend your arms and undulate your body through the water.

* Try practicing the kick with fins on to get the feeling of a powerful and fluid kick.

*Claps* umm... that helps a lot but im actually asking the hand part. making its wings, its so hard to make a circle up, is so heavy.