That's just Finder, you can set up these options in the Finder Preferences option. For the cover flow and reflection look all you need to do is arrange them by either Kind, Size, or Date and you'll get the same look. Let me know if you have any trouble. Thanks.
The image preview? I am not using a theme in the particular shot. The 'preview' image is just 'Spotlight Preview' (just click and on an image from finder and hit the space bar). If thats not what you are referring to just be a bit more specific and i will gladly share my setup with you. Thanks