For this tutorial, I have used an image I processed earlier, of a tree in front of of a gorge in the Kalbarri National Park. This one’s from the Nature’s Window area, so when I processed the image I had in mind something that would hark back to the natural phenomenon known as Nature’s Window.

Here’s the image I processed using the Android App “PicLab”.  I have filed this App in my “Type” folder on my Samsung Galaxy S4, as it offers a variety of text fonts, graphic design-type “windows” and frames, among other things. I used the simple triangle window for this image. (At the time of writing, PicLab has unfortunately suffered from a less than perfect Update, and now won’t open up. The developer has informed me a fix is in hand).

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Next, I ran the image through the Android App "PicsArt", using the Offset filter, horizontal and vertical passes, and also various passes thru the Collage setting.

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I found that by using a “Bulge” filter I was able to create an “eye” of sorts in the middle of the image. I then set up a 4-square grid, and alternated adding in a “normal” image and one with the “eye” bulge. When I ran this through the collage filter, I found that it created the impression of a half-drop effect.  Pretty cool, huh!

The following shows the results after each pass through the Collage setting in PicsArt.

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While this isn’t strictly a true half-drop effect, it certainly gives the impression of a design that flows. What I like about it is how all the lines just tie up smoothly, something I have not yet managed to master on Photoshop on my Mac.