Alien Skin provides several different preview window arrangements for viewing the original image and the filtered image. A total of nine preview selections are possible. Why? Well, my guess is that you have different images which will require different types of previews. Some images will be more comfortable viewing a top and bottom comparison, while others may require a diagonal comparison. Further, you may find it necessary to switch the diagonal and horizontal comparisons because the image demands it. This is why Alien Skin provided so many different comparison windows. Definitely a plus in my book.

The following are examples of what the previews look like.