Have to agree with Dave. You can brighten the images, but it may alter their mood. And that's more important. Besides I can alter these many times and they will look fine, just different. I don't want to alter or question your sense of style; my only concern was that the images all tend to look dark, and this cannot always be attributed to mood. Remember often the raw can drab and without tones or contrast. Here is one take. Looks nice but substantially alter the quiet -and dare I say it- the dark still mood.
JR