clipping mask

get back to photoshop and cut the white part out...

Is that green in your image a new background you are putting the person over? If it is, you can just draw the shape in between the arm and mask it with the background as a second clipping mask.

you need to outline the image with the pen tool. then outline the inner area with the pen tool. then go to pathfinder and choose the right pathfinder to make a "silhouette" of the image you want to do a clipping mask for. then choose the "silhouette" and the image, and do a clipping mask

Edited by ryry919 - 06/Nov/2007 at 10:17am

I know this is an old post but I am new and should chime in about this topic.

I do it all the time too.  No matter how complex the image is, treat the mask as a separate piece of art, work from the outside  first, then minus front (essentail pathfinder tool) the stuff you want to show through, then select both bitmap and vectored mask and hit command (control) 7.  Done.  If it's not perfect, use direct select tool to move the nodes some more for a tighter fit.  I separate screen printing  art for t shirts and work on the digital side as well with playing cards.