Question about sharpening

I use PSP 7 when I'm making icons and I'm noticing that when I sharpen I sometimes get an almost jagged looking edge on faces and clothes like this:



I'm wondering if there are ways around it and so far the best thing I can think of is using unsharp mask rather than sharpen but I'm not sure what settings to use for it. I want the image to be clear but not rough like this one

Any thoughts?