Yung kay Donita (by the way ang ganda nya talaga...hehehehe) "glow" ang tawag sa effect na yan and again you can achieve this w/o 3rd party filters sa PS.
1. Of course...open the pix
2. Duplicate the layer twice (paano yun duplicate and twice hehehehe)
3. Choose the middle layer and go to filter/stylize/find edges
4. Choose Image/adjustment/desaturate
5. Change the layer application to Overlay
6. Now choose the 3rd layer (uppermost part) create a layer mask
7. Option click the layer mask and Choose Image/apply image (use Layer: Layer 1 Channel RGB Blending: Normal Opacity: 100% Uncheck Preserve Transparency/ Mask
8. Change Layer apllication to screen and then choose Image Treshold...aplly to taste
9. Choose filter/gaussian blur...aplly to taste
and your done...