Please go to flickr username: "someonethere" for full size photos, sorry link cannot be displayed here 1. How to brighten the facial features? 2. How to improve the lightings and skyline of this pic
For the face, in Photoshop > just copy the entire pic to a new layer, and brighten it HEAPS. Then use a big soft eraser to get rid of the rest of the picture, leaving only the face. Then adjust opacity to make it look kinda natural. Extreme example: You can probably do something very similar using GIMP.