Tutorial on Comm Bars?

[Epo]

Try catching +/- half of the ball with round selection and moving it to another layer. Or even double the current layer as well. Try to gather them in following way: (from above)
1. Starting layer with deleted 'eye' part. Just select the part of the layer which will turn into 'eye' and then just remove the selected area. Make sure the layer is transparent tho.
2. Only the 'eye' layer
3. The original not changed layer

Try selecting smaller parts of the 'eye' and working around on them. You can try multiplying the 'eye' layers, changing something on each and then have fun with transparency. You can get some kinda interesting effects this way. Reverting colours or having fun with shades could be a good idea too