When you say "show," do you mean show to a client or just put in a frame for friends or family? The image can easily be fixed to the point where it can be put in a frame. The reason I chose to work on one rather than both, is that the one I chose seemed more salvageable than the other. If I were going to try to fix the second, I would clone some of the texture of the dress from the first and work from there. In the other picture, the gentleman is quite salvageable.
The gentleman's hand in this picture, however, is probably too blown out to fix. If you have another picture of his hand in a similar position, use that, otherwise look for a useable hand via a Google search; when photo editing/retouching, the rule is "beg, borrow, steal" any information you can to get the results you want: I once worked on a picture of my dad's cat sitting in his lap. Because of the way a cat's retina reflects light, the eye was blown out. I copied my dad's eyes to a new layer, made them a bit smaller, and "donated" them to the cat. Looking at the picture, you would never suspect a thing.
As a rule of thumb, anytime you see a picture that is overexposed, copy the layer and apply a Multiply blending mode. If it is underexposed, copy and apply a Screen blending mode. This won't always work, but it's often a good starting point.
If you don't already have it, buy a copy of Katrin Eismann's Photoshop Retouching and Restoration book:
http://www.amazon.com/Photoshop-Rest...8983264&sr=8-1. Many retouchers on this site have learned a great deal from it and, for myself, it was the only Photoshop book I found useful when I began learning Photoshop several years ago. Though I've read it twice (and done many of the examples she provides via downloadable files), it continues to be an invaluable reference.
Good luck!