You can see the default panel setup, and the view of the toolbars.

Left panel: Image details. You can see the small image on the bottom of the panel, and the resolution of the image.
Right: access denied on the folder. Also, you can see the tooltip which is used widely in the application.

Advanced dragging, dragging one file (orange) while others are selected. Also, you can see the special drag-targets on the right panel.

This is how the copying starts. You can notice the selection part on the bottom-left of the Copy window. It start collecting the data while the copy window is up before the actual copying starts, making the whole thing faster.

On the topleft corner, that is the configuration window.
The top right corner have the About box.
Bottom left is the bookmarks editor, bottom right is the plugins window. You can notice, that these windows look a bit differently then the original Windows windows. It is becuase they behave a bit differently. They are never modal, they can go transparent automatically (when they are not pinned - see the pin on the top/right corner), and they cannot be moved outside of the display.
All of the child windows of the application is like this, only the main application window kept the original Window look and feel.