This gallery setup (click on the images to the right to enlarge the settings) is a great way for the creative to showcase a large body of portfolio work. Images are shown without any cropping, simultaneously contained on one page and can be viewed with one sweep of the eye. The observer then only has to click on a picture that takes their fancy to open the image in a fullscreen lightbox overlay. They're then free to scroll through the rest of your images at full resoloution.
How you then choose for the images to scroll, whether the slideshow starts automatically, or has navigational arrows is entirely down to you... the possiblities are endless!