I think its a great plug-in, but i dont like the bottom.
To remove the bottom, I have made a little guide(no pictures).
1. Select ALL pixels in the bottom circle(also the little grey ones around it), by using the magic wand at about 50%. Maybe its easier to use the ellipse seletion tool(depends on the orb color).
2. Move the selection(NOT the pixels) up, just then it dosn't select the circle edges(you'll have to move it a little to the left), and press CTRL+C.
3. Now press CTRL+V to paste the copied area, and place it on the bottom circle. It should cover the grey pixels perfectly, otherwise you should start over.
4. Go to adjustments>levels(CTRL+L), hit reset, and change the middle number in the output section from 1,00 to someting like 1,50(depends on the orb color).
5. Now use the feather plug-in, set to amount 1 and shrink, to soften the edge of the bottom circle(not necessary, but looks good).
You're done!