For portrait retouching, we need a few things to look forward to. Brighten the eyes as well as eye hollow areas, remove any major blemishes, soften the skin and finally sharpen the eyes and the overall image. You can use a mixture of healing brush tool, lasso tool, clone stamp tool, brush tool for portrait retouching. You also need some masking to do for portrait retouching. We can professionally retouch your portrait images in Photoshop.
Learn more about Portrait Retoucing:
A Complete Guide to Retouching Portraits in Photoshop for Free by fstoppers
Learn Photoshop Portrait Retouching by Lynda
Free Online Portrait Retouching Tools: