How to make a Photo collage in Photoshop by your self - Photoshop Tutorial for beginners

In this tutorial I will show to you how to make a photo collage in photoshop with a few steps. So, please follow this guide in below for more detail.
First you need open the Adobe Photoshop software. Then create new document, choose size in below:
Width: 3000 pixels
Height: 2000 pixels
Resolution: 300 pixels /inch

Then go to view menu >  New Guide.

After that a new window appear, choose 500 pixels each guide until finish all the paper. And we have the guide like this.

Then select the Elip tool or you can press U button on your keyboard.

Then select the color you want to use. In this lesson I will choose grey color.

Then start draw a rectangle like this picture below

And change the thickness of rectangle shape to 3 and choose white color for outline.

And copy to many part as you want. Select the rectangle, copy and paste to many part like this picture:

Go to Layer menu > layer style > Drop shadow to add shadow effects

And as you can see this is the result after add shadow effects for all shapes.

Go to File > Place, then choose the picture you want. With other shapes, use the same steps.

You can resize and move picture to position you want.

And this is the final result.

So, this is all about all steps how to make photo collage in photoshop. If you have any ideas, please comment in this below, ot if don't understand, please see this video :