Problems with gradient and brush softness

I have two images, one made with gradient tool and one with the brush tool. I want the transfer to be smother, as it is now you can see some lines. How do you solve this problem?

Gradient
http://www.photo-host.org/v/friendship/052435gradient1.jpg

Brush
http://www.photo-host.org/v/chat/079347brush.jpg

Both are in 100%

Two things you could try:-

1. Increase the resolution of the images, as they are now they look a bit blocky. (Image > Image Size)

2. Give them a small amount of the Gaussian Blur filter. (Filter > Blur > Gaussian Blur)

Hope this helps

I found another way. Work in 16-bits and add a little noise