Step 1
First thing to do is create our document.
Step 2
Scale it, and then add an Adjustment Layer, Brightness/Contrast, on the menu under the layers.
Step 3
Position it on center, after import it, grab the Magic Wand tool and select the white area to remove. But before you need to rasterize it, because it is as a smart object. Then, add a Drop Shadow and a Inner Shadow in the blending options panel.
Step 4
Now, let's put some memories on it. Create a new group and name it "mexico". Add an inside Stroke and a Drop Shadow in blending options. Rotate it a little bit.
Step 5
If you would like to get better shadows on the photos, you can apply it manually. It will be a better result. Duplicate the layer and clear the layerstyle of the new one. Move it to under the original and, again in the blending options menu, check Color Overlay. Choose color black. Create a new layer. Select both layers (the duplicated layer and new one created) and press CMD (Control) + E to merge them.
Now blur it by clicking on Filters - Blur and choosing Gaussian Blur. Set the Radius to around 2px or 3px. If you want, you can down the opacity a little. Move the shadow layer 2px down and maybe 2px left or right. If you want to extend the shadows in some areas use the Warp transform.
Step 6
To add a post-it, grab the Rectangle tool, and pressing Shift draw a square around the size of the photo, or maybe less if you want. For the Rectangle color use #faffa3.
Step 7
Before we start making our post-it shadow, we're going to add a texture to it, to have more a realistic look. Download this image, and import it to our document. Scale the texture, and change Blend Mode to Pin Light. Down the opacity to 35% and pressing Option (Alt) key click between the post-it and the texture layer.
Now you can add the shadow to it. Repeat the process done before to the photo. Duplicate the layer, add Color Overlay (black) on the blending options, create a new layer and merge them by pressing CMD (Control) + E. But this time, let's distort the post-it, instead distort the shadow.
Step 8
Add some text. You can use the Angelinafont and scale its size to whatever you want.
Step 9
The process is basically the same. If you want, you can add some more images.
Step 10
To add a different element to our image let's grab some film tapes. Open it on photoshop in a new document and unlock the background layer. Then select the Magic Wand tool and select all white areas of the image and press Delete. Deselect it and press CMD (Control) + A to select everything and copy to our collage, inside a new group called "film tape". Cut it a little so our tape doesn't look so long and thin.
Step 11
Grab another photo. In this case I will use the same photo of the big kid. The photo must be a square, so make sure your photo has the right dimensions. Scale it to a very tiny size. We are going to place it inside the film tape. Change the blend mode to Color Dodge. Duplicate the layer and move it down pressing Shift. Repeat the process till the tape is full of photos.
Select all the layers inside the "film tape" group, create a new group, call it "tape 1? and move all the layers into the group.
Duplicate the "tape 1? group and name it "tape 2?. Select the group and press CMD (Control) + T to rotate it. Repeat the process one more time.
Step 12
Select all the following layers and Rotate them at the same time.
Step 13
Now to give it a look more old let's add two adjustment layers to all image. On top of all layers create a one Gradient adjustment layer (change the blend mode to Soft Light) and other Vibrance adjustment layer. Apply the following settings.
Finish
Our collage is finally done! Of course you can also add more object to this image but for now the idea is simple and nice.
