Step 1: Create a new Document.
Choose File->New (or press Ctrl+N).
Enter the following information: Width 3000 pixels, Height 3000 pixels, Resolution 300 Pixels/Inch, 
Color Mode RGB color, and Background contents Transparent or White.
Step 2: Select the Custom Shape Tool.
Select the Custom Shape Tool from the Tools panel (or just press U).
Make sure Shape is chosen from the menu then choose shape color. 
Enter a value for the stroke size and select a hexagon shape from the Custom Shape pop-up panel.
Step 3: Draw a Hexagon Shape.
Click inside your document and drag away from the starting point.
Step 4: Duplicate the Hexagon Shape.
Duplicate the Hexagon shape we have been made by going to Layer->Duplicate Layer (or press Ctrl+J).
Then reposition your duplicate shape layer using Edit->Free Transform Path.
Step 5. Group All the Hexagon Layer For Backup.
While holding down the Shift key, click all the hexagon layer and then choose Layer->Group Layer.
Step 6: Insert Image.
Select the hexagon layer to which you want to insert a picture.
Go to File->Place to open the picture you'd like to insert.
button.
Step 7: Create a Clipping Mask.
Click the image's layer to be clipped, then choose Layer->Create Clipping Mask (or press Alt+Ctrl+G).
Step 8: Insert Other Images.
Repeat steps 6 through 7 to open and manipulate each image you'd like to insert.
Duplicate the layers group for backup by choosing Layer->Duplicate Group. 
You can hide the original group layer by clicking on its eye icon on the left.
Step 9: Merge Layers.
Click the duplicate group layer then select the Layer->Merge Group.
We need to merge the layer group because we can't apply the Spherize filter to a layer group.
Step 10: Draw a Circle Selection.
Select the Elliptical Marquee Tool at the top of the Tools panel (or press M).
To draw a circle selection, drag mouse in the document window while holding 
down the Shift key to keep the circle selection does not distort.
Step 11: Apply the Spherize Filter.
Choose Filter->Distort->Spherize. Drag the “Amount” slider to 100% and for the “Mode”, choose Normal.
Step 12: Create a New Layer for Shadow.
Create a new layer for shadow by choosing Layer->New->Layer (or press Shift+Ctrl+N).
Step 13: Create a Layer Mask.
With the circle selection still active, choose Layer->Layer Mask->Reveal Selection.
Step 14: Create the Shadow.
Select the Gradient Tool from the Tools panel (or press G). Choose Black to White color and Radial Gradient in the options bar.
Make sure Layer 1 is selected by clicking on it. Click in the middle of the document and drag it out. 
Arrange the shadow using the Edit->Transform->Distort. You can click and drag to set the position of the shadow in the document.
Step 15: Adjust Size And Position Using Free Transform.
Choose Edit->Free Transform command.
