Design your own portrait photo strips with this four-way gem
Go to the first image and double-click the layer’s thumbnail to unlock it. Go to Image>Resize>Canvas Size. In New Size, change units to Percent and make the Width 400%. Click the middle-left arrow so that the canvas is only extending to the right.
Go to your second image and Edit>Select All, Edit>Copy. Go back to your newly extended canvas and select Edit>Copy to paste in the second photo. Use the arrow keys on your keyboard to nudge it into place next to the first image. Do the same for the third fourth images.
Go to the first image, hold down Cmd/Ctrl and click on the layer thumbnail to select the photo area. Go to the adjustment layer menu and pick Gradient Map; a mask will be applied with the selection area. Pick the Blue, Red, Yellow gradient, set the blend mode to Colour and lower the Opacity.
Repeat for the other images, adding a different effect each time. Our second effect is a Hue/Saturation layer with Saturation at 0; the third is another Hue/Saturation layer with Colourise ticked and a Sepia tone colour applied. The fourth effect uses a Gradient Map (Violet/Orange) set to Screen mode. Experiment with what looks good!